化学化工专业英语试卷
化学化工专业英语试卷 Newly compiled on November 23, 2020 黄淮学院化学化工系2012-2013学年度第二学期
期末考试《专业英语》A卷 注意事项：本试卷适用于10级(本科)化学专业学生 题 号 一 二 三 四 五 总分 核分人 得 分
1. octane： 2. decyl： 3. butanol： 4. hexene： 5. heptyl aldehyde： 6. oxyacid： 7. aliphatic compound： 8. oxidation reaction： 9. organic chemistry： element： 11. orbital electron： ： analysis： charge： ： ： hectane： ： hydroxide： ： 1. 酮： 2. 乙氧基化物： 3. 键角： 4. 热力学函数： 5. 同系列： 6. 甲苯： 7. 构象异构： 8. 14烷： 9. CH3CH2CH2CH2CH2-： 10.电离能： 1．Progress in the so-called “active ingredients”, which enhance and extent this cosmetic effect measurably, is large enough area to merit another separate aritcle. 2．In contrast to inorganic compounds, the molecular attraction of organic compounds is weak, so organic compounds are
得 分 评卷人 一、 Write the Chinese name for each of the following
（每小题1分，共20分）
得
得 分 评卷人 三、 Translate the following sentences into Chinese
（每小题3分,共30分）
院系----------------------- 专
业
、班级--------------------- 姓名------------------- 学号 --------------------
------------------------- 密-----------------------封-------------------------------线------------------------------
-
------------------ usually volatile and possess low melting points. 3．Benzene can undergo the typical substitution reactions of halogenation, nitration, sulphonation and Friedel-Crafts reaction. 4．Evaporation is conducted by vaporizing a portion of the solvent to produce a concentrated solution or thick liquor. 5．The presence of a substituent group in benzene exerts a profound control over both orientation and the ease of introduction of the entering substituent. 6．The functional group of a ketone consists of a carbon atom connected by a double bond to an oxygen atom. 7．At equilibrium, these two rate are equal; cupric ion is still reacting with ammonia molecules to form the complex, and the complex is still decomposing, but just as much cupric ammonia complex is being decomposed in unit time as is being formed. 8．The reaction of an acid chloride with an amine is used commercially in the manufacture of the very important range of semi-synthetic penicilings,first produced by the Beechan Group in 1959. 9．Thus satisfactory binding propertise are essential for trouble-free compression and the production of good quality cakes over long manufacturing periods. 10．The synthesis of organic compounds involves conversion of available substances of known structure, through a sequence of particular, controlled chemical reactions, into other
compounds bearing a desired molecular structure. The active ingredients were identified in the unsaponifiable fraction of this vegetable product. After solvent extraction and drying, the pure unsaponifiables are obtained in the form of a waxy solid. This
得 分 评卷人 四、 Translate the following paragraph into Chinese （本大题共1个小题，共25分） waxy solid is then redissolved in untreated shea butter to increase the unsaponifiable content and thus lead to the unsaponifiable shea butter concentrate. Used in cosmetics at levels of up to 2%,it provides excellent protection against sunlight and skin dryness. Another example is the extract of the kola nut, known for its anti-irritant properties. As available in the market, it has an objectionable color and odor . At Estee Lauder, we analyzed and separated its constituents, identified the individual components with anti-irritant properties, and recombined them in the most effective ratio. In the process , objectionable color and odor were removed and possible allergens（过敏原） eliminated. All this indicates that cosmetics formulated with plant extracts today can be more effective and , at the same time, more elegant than 10 or 20 years ago.
采用一种简单、可靠并且有效的气相色谱法，来同时测定草药鱼腥草和鱼腥草注射液中8种活性组分的含量。在研究的浓度范围内，发现鱼腥草中
草药和注射液中8种活性组分的R2的值高于，都有良好的线性
行为，其日内和日间的精度都很高，其RSD小于2%，且在三种不同浓度下获得的8种组分的平均回收率范围为%–%，RSD为～%。该方法已成功应用于鱼腥草中草药和注射液的这8种活性成分的同时测定，包括不同厂家、不同批次生产注射液过程中的中间产物。这表明本文提出的方法特别适合注射液的常规分析和在生产过程中的质量控制。
得 分 评卷人 五、 Translate the following paragraph into English （共15分）
化学专业《专业英语》试卷(A 卷)
化学与环境学院2013/2014学年第（1）学期期末考试试卷《专业英语》试卷（A 卷）专业年级班级姓名学号一、单词短语中译英（每小题1分，共10分）1.无机化学_____________2.二氧化碳_____________3.配体_____________4.同分异构体___________5.氯化钠_____________6.酸和碱__________7.摘要___________8.离子键_____________ 9.甲苯_____________10.电子_____________二、单词短语英译中（每小题1分，共15分）(1) carbonate__________ (2) monoxide__________ (3) amino acid__________(4) aromatic__________ (5) protein__________ (6) covalent bond_________(7) raw material__________ (8) chemical shift _________ (9) solute __________(10) oxygen__________ (11) monatomic__________ (12) polymer__________(13) pesticide__________ (14) detergent__________ (15) donor__________(16) nuclear magnetic resonance __________ (17) alkali metal__________(18) geochemistry__________ (19) electrode__________ (20) alkene__________二、阅读理解：（本题共3篇短文，15个小题，根据短文内容从各题的A,B,C,D四个选项中选出一个最佳答案，并将答案代码填入题后的括号内。
化学化工专业英语范东生答案
化学化工专业英语范东生答案1.There are several(A)students in our grade.A.hundred.B.hundreds of.C.hundred of.D.hundreds of the.2.Seven minutes for us to finish the jobs(B)quite enough.A.are.B.am.C.is.D.were.3.What()bad news.My parents order me to finish(A)hard work in()bad weather.A.a,such a,such a.B.such,such.C.such,so.D.a,such,such a.4.English is always heard(C)in these days of China.A.taught.B.be taught.C.have taught.D.to be taught.5.Can you tell me how()medicine has(A).A.many,lost.B.much,lost.C.many,been lost.D.much,been lost.6.()New Year is coming,what will you do on(A)New Year‟s Day.A.the.B.;C.The;a.D.The.7.left my pen and now I‟v e no one(C).A.to write.B.to write by.C.to writ for.D.to write with.8.It was too noisy for me(C).A.to go to bed.B.to fall asleep.C.to get to asleepD.to go to asleep.9.What(C)you sing if she plays the piano for you.A.would like.B.did.C.do.D.will.10.When the hard job(C),we‟ll travel to the Great Wall.A.is finished.B.was finished.C.will be finished.D.has been finished.。
绍兴文理学院2021级大一化学专业英语上学期期末考试试卷附答案
2021级大一英语上学期期末考试试卷附答案Part II Reading Comprehension (30 %)Directions: There are four passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.Passage OneScience is not a set of unquestionable results but a way of understanding the world around us. Its real work is slow. The scientific method , as many of us learned in school, is a gradual process that begins with a purpose or problem or question to be answered. It includes a list of materials, a procedure to follow, a set of observations to make and, finally, conclusions to reach. In medicine, when a new drug is proposed that might cure or control a disease, it is first tested on a large random group of people, and their reactions are then compared with those of another random group not given the drug. All reactions in both groups are carefully recorded and compared, and the drug is evaluated. All of this takes time and patience.It’s the result of course, that makes the best news—not the years of quiet work that characterize the bulk of scientific inquiry. After anexperiment is concluded or an observation is made, the result continues to be examined critically. When it is submitted for publication, it goes to a group of the scientist’s colleagues, who review the work. Einstein was right when he said: “No amount of experimentation can ever prove me right, a single experiment can at any time prove me wrong.”In August 1996, NASA announced the discovery in Antarctica of a meteorite(流星) from Mars that might contain evidence of ancient life on another world. As President Clinton said that day, the possibility that life existed on Mars billions of years ago was potentially one of the great discoveries of our time.After the excitement wore down and initial papers were published, other researchers began looking at samples from the same meteorite. Some concluded that the “evidence of life”was mostly contamination from Antarctic ice or that there was nothing organic at all in the rock.Was this a failure of science, as some news reports trumpeted?No! It was a good example of the scientific method working the way it is supposed to. Scientists spend years on research, announce their findings, and these findings are examined by other scientists. That’s how we learn. Like climbing a mountain, we struggle up three feet and fall back two. It’s a process filled with disappointments and reverses, but somehow we keep moving ahead.21. The author’s main purpose in writing this passage is to state that ____________.A) most scientific discoveries are not reliableB) mass media is misleading because it looks at the research results onlyC) scientific research is a process filled with reverses and requires slow and patientworkD) repeated experiments are necessary before medicine can be used in patients22. Publication of a scientific finding signifies __________.A) a challenge to fellow scientists to prove it wrongB) the end of a processC) the beginning of a new scientific inquiryD) the soundness of the result23. Einstein’s words are used to show that he thought___________.A) experiments have proved him rightB) scientists do not need so many experimentsC) one experiment is not enough to prove him wrong.D) scientific ideas are never free from challenge24. NASA’s announcement of the discovery of evidence of ancient life on Mars shows _________.A) the way human beings learn about natureB) the failure of the scientific methodC) the fruitlessness of human search for life on another worldD) the excitement brought by scientific findings25. It can be inferred from the passage that the media is interested in __________.A) the process of scientific researchB) the results of scientific researchC) the scientists who do the researchD) the effects of scientific research on human lifePassage TwoNormally a student must attend a certain number of courses in order to graduate, and each course which he attends gives him a credit which he may count towards a degree. In many American universities the total work for a degree consists of thirty-six courses each lasting for one semester. A typical course consists of three classes per week for fifteen weeks; while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years attending two semesters each year. It is possible to spread the period of work for the degree over a longer period. It is also possible for a student to move between one university and anotherduring his degree course, though this is not in fact done as a regular practice.For every course that he follows a student is given a grade, which is recorded, and the record is available for the student to show to prospective employers. All this imposes a constant pressure and strain of work, but in spite of this some students still find time for great activity in student affairs. Elections to positions in student organizations arouse much enthusiasm. The effective work of maintaining discipline is usually performed by students who advise the academic authorities. Any student who is thought to have broken the rules, for example, by cheating has to appear before a student court. With the enormous numbers of students, the operation of the system does involve a certain amount of activity. A student who has held one of these positions of authority is much respected and it will be of benefit to him later in his career.26. Normally a student would at least attend __________classes each week.A) 36B) 12C) 20D) 1527. According to the first paragraph an American student is allowed _______.A) to live in a different universityB) to take a particular course in a different universityC) to live at home and drive to classesD) to get two degrees from two different universities28. American university students are usually under pressure of work because_________.A) their academic performance will affect their future careersB) they are heavily involved in student affairsC) they have to observe university disciplineD) they want to run for positions of authority29.Some students are enthusiastic for positions in student organizations probably because_________.A) they hate the constant pressure and strain of their studyB) they will then be able to stay longer in the universityC) such positions help them get better jobsD) such positions are usually well paid30. The student organizations seem to be effective in _________.A) dealing with the academic affairs of the universityB) ensuring that the students observe university regulationsC) evaluating students’performance by bringing them before a courtD) keeping up the students’enthusiasm for social activitiesPassage ThreeDoreen Sykora is now a junior at Mcgill University. She had a difficult time when she first began college. She said, “I was always well prepared for my examinations. But I would go in to class to take the exam, and I would fall apart. I could not answer the questions correctly-----even though I knew the answers! I would just blank out because of nervousness and fear.”Hitoshi Sakamoto, an anthropology student at Temple University in Tokyo reports similar experiences.These two young students were experiencing something called test anxiety. Because a student worries and is stressed about a test, his or her mind does not work as well as it usually does. The student cannot write or think clearly because of the severe tension and nervousness.Now there are special university courses to help students. In these courses, advisors and psychologists try to help students by teaching them to manage test anxiety. Such a course helps students learn to live with stress and not fail because of it. First students take a practice test to measure their worry level. If the tests show that their stress level is high, the students can take a short course to manage the fear. These courses teach students how to relax their bodies. They get training to become calm in very tense situations. By controlling their nervousness, they can let their minds work more easily. Learned information then comes out without difficulty on a test.Doreen Sykora saw immediate results after taking such a course. She now has enthusiasm about the relaxation methods. “Mostly, what I do is imagine myself in a very calm place. Then I imagine myself picking up a pencil. I move slowly and carefully. I breathe easily and let all the tension out. With each breath, more worry leaves me. It really works too. My grades have improved greatly! I’m really doing well at McGill now. This relaxation method works not only on examinations, but it has improved the rest of my life as well.”For Hitoshi in Tokyo, the results were much the same. He is enjoying school a lot more and learning more.31. Doreen Sykora and Hitoshi Sakamoto were filled with nervousness and fear during examinations because they were__________.A) not ready and unaware of the answersB) physically so weak that they fell apartC) subject to test anxietyD) unable to write or think clearly32. The higher the students’worry level is, __________.A) the less calm and relaxing they areB) the more difficult they will be trained to manage fearC) the more stressed and tense they areD) the longer courses they will take to manage fear33. What’s the purpose of some special university student-help courses?A) To help students to reduce test anxiety.B) To show a stress level experienced by students.C) To learn more knowledge about test anxiety.D) To have a better understanding of test anxiety.34. What’s the meaning of “blank out”in paragraph one?A) To be like a blanket.B) To be sure of an answer.C) To be relaxed.D) To be unable to think clearly.35.Which of the following best sums up the organization of the passage?A) Examples----theories----ideas.B) Problem----strategy----examples----results.C) General statement----examples----result.D) Strategy----experiment----examples.Part III Vocabulary and Structure (15 %)Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.36. The president made a _______ speech at the opening ceremony of the sports meeting, which encouraged the sportsmen greatly.A) vigorousB) tediousC) flatD) harsh37. It is not easy to learn English well but if you _______, you will succeed in the end.A) hang upB) hang aboutC) hang onD) hang onto38. Remember that customers don’t _______ about prices in that city.A) debateB) bargainC) disputeD) consult39. The newcomers found it impossible to _______ themselves to the climate sufficiently to make permanent homes in the new country.A) suitB) adaptC) regulateD) coordinate40. A _______ to this problem is expected to be found before long.A) resultB) functionC) settlementD) solution41. You have nothing to _______ by refusing to listen to our advice.A) gainB) graspC) seizeD) earn42. One day I _______ a newspaper article about the retirement of an English professor at a nearby state college.A) came acrossB) came aboutC) came afterD) came at43. A peculiarly pointed chin is his memorable facial _______.A) markB) featureC) traceD) appearance44. I hope that you’ll be more careful in typing the letter. Don’t _______ anything.A) omitB) leakC) lackD) withdraw45. Our new house is very _______ for me as I can get to the office in five minutes.A) adaptableB) convenientC) availableD) comfortable46. Those gifts of rare books that were given to us were deeply_______.A) appreciatedB) approvedC) appealedD) applied47. The sale usually takes place outside the house, with the audience _______ on benches, chairs or boxes.A) having seatedB) seatingC) seatedD) having been seated48. He is _______ about his chances of winning a gold medal in the Olympics next year.A) optimisticB) optionalC) outstandingD) obvious49. The clothes a person wears may express his _______or social position.A) curiosityB) statusC) determinationD) significance50. I don’t know the word. I had to _______ a dictionary.A) throw upB) make outC) refer toD) take over51. Look at these beautiful Japanese stamps. Roger gave them to me in _____ for two sets of 1988 British special issue.A) exchangeC) shiftD) switch52. It is rather _____ that the research team as a whole still has little idea about the cause of that fatal disease.A) rewardingB) demandingC) embarrassingD) requiring53. The people of African interior began to _____ gold in exchange for the goods they needed from abroad.A) desireB) affordC) offerD) receive54. We should not blame her for what happened yesterday, because that was outside her _____of responsibility.A) fieldB) limitC) extentD) range55. The students put forward some suggestions _____ consideration.B) worthyC) worthD) worthy of56. The author of the report is well _____ with the problem in the hospital because he has been working there for many years.A) acquaintedB) informedC) enlightenedD) advised57. After years of hard work, he finally gained ______ to the university which he longed for many years.A) accessB) commitmentC) opportunityD) reward58. _____ you have passed the driving test successfully, you can drive on your own.A) By nowB) Now and againC) Now thenD) Now that59. Within first seven seconds of meeting, people will form their opinion about others through unspoken communication like _____, postures and attitudes.A) signsB) gesturesC) symptomsD) symbols60. It had never _____ to me that our football team won the game.A) struckB) occurredC) hitD) meant61. The students ______ in cleaning the classroom according to the arrangement.A) alternateB) adaptC) adoptD) admit62. Have you any ______plans about how to deal with these difficulties? We need to be practical-minded.A) abstractB) consistentC) concreteD) contrary63. The professor was afraid that unless the train speeded up he would miss his _______ to New York.A) junctionB) connectionC) seatD) carriage64. When writing about controversial topics, some authors try to be _______ without favoring either side.A) reflectiveB) persuasiveC) impressiveD) objective65. Many factors such as too much stress, bad living habits can lead to poor ______ and ill health.A) experienceB) appearanceC) performanceD) competencePart IV Cloze (10 %)Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A), B), C) and D). You should choose the ONE answer that best fits into the passage. Then mark the corresponding letter on the Answer Sheet with a single line through the center.Language is a signaling system which operates with symbolic vocal sounds (语声), and which is used by a group of people for the purpose of communication.Let’s look at this 66______ in more detail, because it is language, more than anything else, 67_____ distinguishes man from the rest of the 68_____ world.Other animals, it is true, communicate with one another by 69_____ of cries: for example, many birds utter (发声) 70_____calls at the approach of danger; monkeys utter 71_____ cries, such as expressions of anger, fear and pleasure. 72_____ these various means of communication differ in important ways 73_____ human language. For instance, animals’cries do not 74_____ thought and feelings clearly. This means, basically, that they lack structure. They lack the kind of structure that 75_____ us to divide a human utterance (发声) into 76_____.We can change an utterance by 77_____ one word in it with 78_____: a good illustration of this is a soldier who can say, e.g., “tanks approaching from the north”, 79_____ who can change one word and say “aircraftapproaching from the north”or “tanks approaching from the west”; but a bird has a single alarm cry, 80_____ means “danger!”This is why the number of 81_____ that an animal can make is very limited: the great tit (山雀) is a case 82_____ point; it has about twenty different calls, 83_____ in human language the number of possible utterances is 84_____. It also explains why animal cries are very 85_____ in meaning.66. A) recognitionB) function67. A) itB) that68. A) nativeB) animal69. A) waysB) methods70. A) datingB) exciting71. A) identicalB) different72. A) ButB) Therefore73. A) fromB) about74. A) inferB) explain75. A) encouragesB) enforces76. A) soundsB) words77. A) spellingB) saying78. A) oursB) another79. A) soB) but80. A) thisB) that81. A) signsB) signals82. A) inB) at83. A) sinceB) while84. A) limitless85. A) ordinaryB) alikeC) classificationD) definitionC) asD) whatC) humanD) physicalC) meansD) approachesC) warningD) boringC) similarD) unfamiliarC) AfterwardsD) FurthermoreC) withD) inC) interpretD) express C) enablesC) voicesD) speechesC) replacingD) pronouncingC) theirsD) othersC) orD) andC) whichD) itC) gesturesD) marksC) ofD) forC) anyhowD) somehowC) changeableD) ceaselessC) commonD) generalPart V Writing (15%)Directions: For this part, you are allowed 30 minutes to write a composition on the topic My View on Online Self-access Learning. You should write at least 120 words. And you should base your composition on the outline (given in Chinese) below:1. 一些人认为上机自主学习方式好;2. 也有一些人认为传统的授课方式好;3. 我的看法。
化工专业英语练习题 参考答案
练习一参考答案1将下列句子或段落翻译成英语1)A process is any operation or series of operations that causes a physical or chemical change in asubstance or a mixture of substances .The material that enters a process is referred to as input or feed the process,and that which leaves is called output or product.2)As a chemical engineer,you might be called on to design individual process units (such as reactors,distillation columns,heat exchangers),supervise the operation of a process,or modify a process design to accommodate a change in the feed or in the desired product characteristics.As a rule,to any of these things you must know the amounts,compositions,and conditions of the materials that enter and leave each process unit,and if you are working with an existing units,you must be able to measure enough of these quantities to verify that the process is doing what it was designed to do.3)Founded in 1839from a small production firm for pharmaceutical products,B.Braun has grown steadilyinto a multinational company dealing with medical products,medical technology,pharmaceutical and biotechnology.2将下列句子或段落翻译成汉语1）包括的一系列操作，如混合、蒸发、过滤，无论产物是什么，这些操作都基本同，从而导致了单元操作的概念。
化学专业英语试卷B
化学专业英语试卷B2012—2013 学年度第一学期应用化学专业《专业英语》课程试卷（B）注意事项： 1.考生务势必自己姓名、学号、专业名称写在指定地点；2.密封线和装订线内禁止答题。
题号一二三四五总分分数选分评卷人一、词汇填空（写出以下每个词汇对应的英汉单词）（共20 小题，每空 1 分，共 20 分）1.原子（）2.镍（）3.氦（）4.元素（）5.阴离子（）6.钴（）7.丙酮（）8.碘（）9.乙醚（）10.钾（）11.甲烷（）12.乙醇（）13.chlorine(）14.nickel（）15.phosphorus （）16.potassium（）17.arsenic（）18.sulfur（）19.butane（）20.aluminum（）二、给以下无极化合物的英语名称（共 10选分评卷人小题 , 每题 2 分，共 20 分）1.HCl2.HBr3.CuSO44.H2SO45.NaCl6.Na2S7.KF8.Al 2O39.KMnO 410.FeCl3二、给以下有机化合物的英语名称（共 5 小题, 每小选分评卷人题 4 分，共 20分）1.CH3CH(CH 3)CH2CH(CH 2CH3)CH2CH32.(CH3)2C＝CHCH 33.CH2(OH)CH 2CH(CH 2OH)CH 2OH4.3，4-二甲基苯酚5.甲乙醚选分评卷人三、英译汉（共10 小题 , 每题 4 分，共 40 分）1.The study of the properties of substances constitutes animportant part of chemistry, because their properties determine the uses to which they can be put.2.The cleavage of the different crystals of salt is the same; when crushed, thecrystals always break along planes parallel to the original faces, producing smaller crystals similar to the larger ones.3.It is customary to say that under the same external conditions all specimens of aparticular substance have the same physical properties (density, hardness, color, melting point, crystalline form, etc).4.Sodium chloride has the properties of changing into a soft metal, sodium, anda greenish-yellow gas, chlorine, when it is decomposed by passage of anelectric current through it.5.When biscuits are made with use of sour milk and baking soda there is a chemicalreaction between the baking soda and a substance in the sour milk, lactic acid, toproduce the gas carbon dioxide, which leavens the dough by forming smallbubbles in it.6.When an acid, base, or salt is dissolved in water the resulting solution is a conductorof the electric current and is termed an electrolyte. If no conduction of current occurs, the compound is known as a nonelectrolyte.7.Green chemistry is the chemistry that aims to reduce the amount of hazardoussubstance coming out in the process of producing chemical materials and toreduce the amount of resource and energy consumed in that process.8.Nonbenzenoid compounds containing rings of carbon atoms are called alicyclic.These are carbocyclic compounds which resemble aliphatic compounds inmany ways.9.The second group is composed of compounds derived from or related to benzene,C6H6. Because the first known derivatives of benzene were natural products extracted from balsams and impressed the discoverers because of their fragrant aromas, the group as a whole came to be known as aromatic compounds.10.Heterocyclic compounds are cyclic compounds with the ring containing carbon andother elements, the commonest being oxygen, nitrogen and sulfur. There are anumber of heterocyclic rings which are easily opened and do not posses anyaromatic properties, e. g. , ethylene oxide,γ- and δ-lactones.。
《化工专业英语》答案
《化工专业英语》答案一、词汇翻译1. 盐酸2. 颜料3. 硫酸4. 氢氧化钾5. 氯化钠6. 硝酸铵7. 甲烷8. 硅9. 碳酸钙10. 二氧化碳11.碳酸钙12.乙炔13.氯化钾14.氧化汞15.网格球顶16.晶体学17.对称的18.杂化19.聚氨酯20炸药二、阅读理解1.C2.D3.B4.D5.A；C D C D A四、英译汉1. 也许你主修保健科学，希望从事一个医学或药学方面的工作。
如果这样，你将希望熟悉水溶液的性质，包括血液和其它体液。
分在过去的几十年里，化学家们研制了很多挽救生命的产品，包括在化学疗法中使用的药物和用于对付抗性微生物的新型抗生素2. 在这种土壤中，化合物中的氮是植物生物化学过程中的有限反应物农民通过向土壤中施加氨和其它氮肥以增加这种有限反应物的量，从而大幅提高大豆、小麦和其它作物的产量3. 食品工业中使用盐酸从玉米淀粉中制备玉米糖浆，从骨头中制取明胶。
这些反应包括通过酸的作用将大分子破碎成小分子。
盐酸也存在于胃部中，帮助消化破碎食物，包括将淀粉转化成糖。
4. 在杂货店中出售的清洗液“阿莫尼亚”实际上是氨气的水溶液。
氨水具有一种特征的刺激性气味。
闻氨水气味时要特别小心，让瓶子距离自己的鼻子一段距离，用手轻轻扇动瓶中冒出的氨气，只能闻飘过来的少量氨气。
5. Smalley以擅长网格球顶设计的建筑师巴克敏斯特富勒的名字来命名这个分子为“巴克敏斯特富勒烯”，他提出的结构与足球相同，C60很快又被冠以“巴基球”的昵称。
化学专业英语练习题
Final Examination PaperⅠⅠ. Monochoice questions酸碱滴定1. Which species cannot be titrated accurately with solution of strong base of 0.1mol/L HCl? ( ).A. Na3PO4(Ka1=7.5×10－3, Ka2=6.23×10－8, Ka3=2.2×10－13)B. Na3BO3(Ka=7.3×10－10 )C. NaCN(Ka=4.93×10－10 )D. NH4OH(Kb=1.75×10－8)2. Which answer is right in arithmetic setup of 38.91× (6.81-6.73)? ( )A. 3.113B. 3.11C. 3.1D. 33. In quantitative analysis, which method listed below can not be used to decrease the system error?( )A. instrument correctionB. increase the mensurationC. change the reagentD. temperature correction4. Use potassium acid phthalate (KHC8H4O4) as a primary standard substance to standardize theconcentration of the NaOH solution. How about the concentration of the NaOH solution standardized when there are a small quantity of neutral impurity in KHC8H4O4?（）A. Its concentration standardized will be on the high side.B. Its concentration standardized will be on the low side.C. Its concentration standardized will not be affected.D. the influence on its concentration standardized is uncertain.5. Assuming the error is ±0.0001g when we use the analytical balance to weigh the sample, so how much is the relative error when we use the analytical balance to weigh 0.1000g sample in direct way.( )A. ±0.01％B. ±0.02％C. ±0.1％D. ±0.2％6. If we want to determine the concentration of Na2HPO4, Which standard solution as titrant listedbelow is reasonable?( )A. solution of 0.1 mol·L-1 H3PO4.B. solution of 0.1 mol·L-1 HCl.C. solution of 0.1 mol·L-1 NaOHD. solution of 0.1 mol·L-1 NH3.7. Which of the following is 5 for the number of significant figures ( )?.A. 1.200 ×108B. pH=12.245C. 0.00605D. 12.708%8. Which substance can use as indicator to show the end point for the titrations that range of titration jump is 5.7～6.5? ( )A. bromophenol blue(3.1～4.6)B. methyl red.C. phenolphthalein.D. bromthymol blue(6.0～7.6).9. Assuming the error is ±0.0001g when we use the analytical balance to weigh the sample. so how much is the relative error when we use the analytical balance to weigh 0.1000g sample in direct way.( )A. ±0.01％B. ±0.02％C. ±0.1％D. ±0.2％10. Which choice listed below is wrong when we talk about range of titration jump. ( )A. The range of titration jump depend on concentration of solution.B. The range of titration jump depend on strength of acid.C. The range of titration jump depend on strength of base.D. The range of titration jump depend on range of color change of indicator.依数性6. The red blood cell will be shrinkable in which solution listed below?（）A. 10.0 g·L-1CaCl2·2H2O(Mr＝147)B. 12.5g·L-1NaHCO3(Mr＝84.0)C. 1.00 g·L-1NaClD. 224g·L-1C3H5O3Na(Mr＝112)11. There are four water solutions of the equal volume in which there are equal mass of glucose, CaCl2, NaHCO3and sucrose respectively. Then whose freezing-point is the lowest? ( )[Mr(glucose)180( HAc)60(Na2CO3)106 (CaCl2) 111]A. GlucoseB. HAcC. CaCl2D. Na2CO312. Which choice listed below is isotonic solution? ( )A. 5% glucose solution and 5% sucrose solutionB. 1 mol·L-1 glucose solution and 0.5 mol·L-1 sucrose solutionC. 0.5 mOsmol·L-1 urea solution and 0.5 mOsmol·L-1 NaCl solutionD. 0.5 mol·L-1 MgSO4solution and 0.5 mol·L-1 CaCl2 solution电解质9. We learn that the K a of HF is 3.53×10-4 and the K b of NH3·H2O is 1.79×10-5, then which option following is true?( )A. NH4＋is a stronger acid than HFB. NH4＋is a weaker acid than HFC. the acidic strength of NH4＋and HF are equal.D. can not do the compare13. A solution was prepared by mixing equal volume of 0.10mol·kg－1NH4Cl and 0.10mol·kg－1NH·H2O, its ionic strength ( I ) is ( ) mol·kg－1.3A. 0.05B. 0.075C. 0.10D. 0.1514. 0.10mol NaOH and 0.10mol HAc are dissolved into 1.0L distilled water together, please calculate the pH of this solution( ) (Ka(HAc)=1.74×10－5)(A) 10.28 B. 11.28 C. 8.88 D. 12.2815. There is 1L 0.1mol·L－1H2CO3 solution with the addition of 0.5ml 0.1mol·L－1 HCl solution. Which choice listed below is true? ( )A. pH decrease, dissociation degree of H2CO3 decrease.B. pH decrease, dissociation degree of H2CO3 increase.C. pH increase, dissociation degree of H2CO3 increase.D. pH increase, dissociation degree of H2CO3 decrease.16. A solution containing the equal concentrations of Cl-,I- and CrO42- ions. Add the AgNO3 to the solution drop by drop, then the sequence of the ions precipitating out of the solution is ( ).（KspAgCl=1×10-10，KspAg2CrO4=4×10－12，KspAgI=9×10-17）A. CrO42->I->Cl-－B. CrO42-<I-<Cl-－C. I->Cl-> CrO42D. I-> CrO42-> Cl-17. The solubility of Mg(OH)2 is maximum when it was dissolved in ( ).A. 1mol·L－1NH4Cl solutionB. 2mol·L－1MgCl2 solutionC. pure waterD. 1mol·L－1NaOH solution18. The concentration of every solutions listed below is 0.10mol·L－1, the pH of which is greater than 7?( )A. NH4ClB. Na2CO3C. NH4AcD. MgCl2缓冲溶液16.The buffer range of a buffer solution prepared by mixing 500ml 0.4mol·L-1 H2CO3 solution and 200ml 0.4mol·L-1 NaOH is about ( ). (pK a1=6.37; pK a2=10.25 )A. 1.12～3.12B. 6.21～8.21C. 11.32～13.32D. 5.37～7.37.19. If you mix two solutions of equal volume in each option listed below, which option has no buffer action. （）A. 0.2mol·L-1HCl和0.2mol·L-1KClB. 0.02mol·L-1HCl和0.04mol·L-1NH3·H2OC. 0.01mol·L-1KH2PO4和0.2mol·L-1Na2HPO4D. 0.01mol·L-1NaOH和0.02mol·L-1HAc20. The most important ACID resistant in the plasma of human being is （）A. H2PO4-B. HPO42-C. HCO3-D. H2CO321. The color of the solution is orange with the addition of methyl orange indicator. In order tokeep the pH of the solution stable, which buffer system listed below is the best? ( )A. 0.1mol·L-1 HAc — 0.1mol·L-1 NaAc (K a = 1.8×10-5)B. 0.1mol·L-1 NH3·H2O — 0.1mol·L-1 NH4Cl (K b = 1.8×10-5)C. 0.1mol·L-1 NaH2PO4 — 0.02mol·L-1 Na2HPO4(K a = 6.2×10-8)D. 0.1mol·L-1 HCN — 0.02mol·L-1 NaCN (Ka = 4.9×10-10)Ⅱ.Fill the blank. (Please fill your answers into the blanks following).1. When the HCl standard solution is used to titrate a sample solution which containing NaHCO3 and Na2CO3, the indicator is(1) in the first step of the titration，the indicator is (2)in the second step of the titration (pKa1=6.35；pKa2=10.33)2.A 2.05 g sample of white phosphorus was dissolved in 25.0g of carbon disulfide,CS2. The of the carbon disulfide solution was found to be 1.59℃. The molecular weight of the phosphorus is (3) g·mol-1 in solution? The formula of molecular phosphorus is (4) mol·L-1 (boiling-point elevation constant K b of CS2=2.4; Mr(P)=31)Ⅲ.Calculation1. A sample of 0.1276g of an unknown monoprotic acid was dissolved in 25.00 mL of water andtitrated with 0.0633 M NaOH solution. The volume of base required to reach the equivalence point was 18.4 mL. (a) Calculate the molar mass of the acid. (b) After 10.00 mL of base had been added in the titration, the pH was determined to be 5.87. What is the K a of the unknown acid?Final Examination PaperⅡⅠ. Monochoice questions依数性6. The osmotic pressure of a solution prepared by the equal volume of 8.4%（g/ml）NaHCO3 and18%（g/ml）glucose (C6H12O6) is equal to the osmotic pressure of ( ). [Mr(glucose)180 (NaHCO3)84]A. 5.85%（g/ml）NaCl solutionB. 1.5mol·L-1sucrose solutionC. 1mol·L-1glucose solutionD. 1 mol·L-1 CaCl2 solution7. Which of the following statements is a logical deduction ( )A. if a nonvolatile solute is added to water, the boiling point of the solution will be 100℃.B. the addition of a volatile solute will change the boiling point of the water.C. atmospheric pressure will affect the composition of the aqueous solution.D. if a nonvolatile solute is added to water, the freezing point of the solution will be lower than that of water.电解质8. Which species is the strongest acid that can exist in aqueous solution? ( )A. NaOHB. Na2CO3C. OH-D. KOH9. A 0.1 mol·L-1 solution of potassium acetate, KC2H3O2, has a lower pH than a 0.1 mol·L-1 solution of potassium cyanide, KCN. From this, you can correctly conclude that ( )A. hydrocyanic acid, HCN, is a weaker acid than acetic acid, HC2H3O2.B. hydrocyanic acid, HCN, is less soluble in water than acetic acid, HC2H3O2.C. the cyanide ion, CN–, is a weaker base than the acetate ion, C2H3O2–.D. acetate ion, C2H3O2, partially dissociates to form hydronium ion, H3O+.10. The factor that does not affect on the activity coefficient has ( )A. ionic concentrationB. charge on the ionC. ionic strengthD. K a or K b11.The pH of mixed solution by 0.10mol·L－1NH3 and 0.10mol/L NaOH is about ( ).（K b=1.8×10-5）A. 9B. 1C. 6D. 1312. The solubility of BaSO4 is not changed when it was dissolved in ( ).A. 1mol·L－1KCl solutionB. 2mol·L－1 Na2SO4 solutionC. pure waterD. no answer13. There is 1L 0.4mol·L－1Na2CO3 solution with the addition of 1.0 ml 0.1mol·L－1 HCl solution. Which choice listed below is true? ( )A. pH decrease, dissociation degree of CO32- decrease.B. pH decrease, dissociation degree of CO32- increase.C. pH increase, dissociation degree of CO32- increase.D. pH increase, dissociation degree of CO32- decrease.14. 25℃, the Ksp of Ag2CrO4is 1.12×10-12, so the concentration of Ag+ions in the saturate solution of Ag2CrO4 is ( )A. 6.54×10-5mol·L-1B. 1.21×10-5mol·L-1C. 1.21×10-4mol·L-1D. 6.54×10-4mol·L-1缓冲溶液15.The buffer range of a buffer solution in which there are the same concentrations of Na2HPO4 and NaH2PO4 is about. (pK a1=2.12; pK a2=7.21 pK a3=12.32)Which one is wrong? ( ).A. 1.12～3.12B. 6.21～8.21C. 11.32～13.32D. all the choice above16. To determine the content of Mg2+ and Ca2+ ions in tap water, in order to keep the pH =10,which buffer system listed below is the best? ( )A. 0.1mol·L-1 HAc — 0.1mol·L-1 NaAc (K a = 1.8×10-5)B. 0.1mol·L-1 NH3·H2O — 0.1mol·L-1 NH4Cl (K b = 1.8×10-5)C. 0.1mol·L-1 NaH2PO4 — 0.02mol·L-1 Na2HPO4(K a = 6.23×10-8)D. 0.1mol·L-1 H2CO3— 0.02mol·L-1 NaHCO3(Ka = 4.3×10-7)17. The most important ACID resistant in the plasma of human being is （）A. H2PO4-B. HPO42-C. HCO3-D. H2CO318. If you mix two solutions of equal volume in each option listed below, which option has no buffer action. （）A. 0.2mol·L-1HCl and 0.2mol·L-1KClB. 0.02mol·L-1HCl and0.04mol·L-1NH3·H2OC. 0.01mol·L-1KH2PO4and 0.2mol·L-1Na2HPO4D. 0.01mol·L-1NaOH and 0.02mol·L-1HAcⅡ.Fill the blank. (Please fill your answers into the blanks following)1. the theoretical range of color change of a weak basic indicator is (1) which K b is 1.0×10－42. A 1.0 g sample of the protein hemoglobin is dissolved in enough water to make 1 L (kg) of solution. The osmotic pressure of the solution is measured at 25 ℃and found to be 0.1 kPa. The molecular mass of hemoglobin is (2) and the molality of the hemoglobin solution is (3) .Final Examination PaperⅢⅠ. Monochoice questions滴定分析1.What is the result of calculation of (20.83--20.43)/0.4000? ( )A. 0.10B. 1.0C. 1.000D. 0.10002.If the K In of a weak basic indicator is 1.0×10-5, what is the color transition pH range of this indicator? ( )A. 4-6B. 6-8C. 7-9D. 8-103.What result would be if NaOH solution was standardized against potassium hydrogen phthalate, the measured concentrations of the NaOH solution in the cases that the initial buret reading of the NaOH solution should be recorded as 1.00 mL, but was recorded as 0.10 mL by mistake. ( )A. highB. lowC. unchangeD. uncertain4.Weigh 1.3350 g of analytical reagent Na2CO3to prepare 250.00 mL of primary standard solution, and use it to titrate approximate 0.1 mol·L-1HCl solution. If 25.00 mL is required to neutralize 24.50 mL of HCl completely and methyl orange is used to indicate end point, report the molarity of HCl solution. ( ) [Mr(Na2CO3)=106]A. 0.1028 mol·L-1B.0.2056 mol·L-1C. 0.05140 mol·L-1D. 0.4112 mol·L-15.依数性How much is the normal freezing points of the solution in which 21.0g NaCl is dissolved in 135mLof water ? [K f=1.86 K·kg·mol-1 , Mr(NaCl)=58.5] ( )A. -9.89℃B. 19.89℃C. 9.89℃D. 19.89℃6.If you want to have osmosis between two dilute solutions separated by semipermeable membrane, which choice listed below is wrong.（）A.Both of the two osmotic pressure are not equal.B. Both of the two osmolarity are not equal.C.Both of the two solutions are not isotonic.D. Both of the two molality are not equal.7.In 500mL normal saline water, the osmolarity of the Cl-ions is ( ) mOsmol·L－1 [Mr(Cl)=35.5]A. 77B. 196C. 154D. 3088.The minimum mass of NaCl that would have to be added to 1.200×103 g H2O so the resulting solution would not freeze outside on a cold day(-10℃) is ( ) (K f=1.86 K·kg·mol-1 , Mr[NaCl]=58.5)A.94.3gB. 188.6gC.282.9gD.377.2g9.电解质There is 1L 0.1mol·L－1 HAc solution with the addition of 0.5mL 0.1mol·L－1 NaCl solution. Which choice listed below is true? ( )A. pH decrease, dissociation degree of HAc decrease.B. pH decrease, dissociation degree of HAc increase.C. pH increase, dissociation degree of HAc increase.D. pH increase, dissociation degree of HAc decrease.10.What is ionic strength ( I ) for the solution that contains 0.10 mol·kg－1NaCN and 0.10 mol·kg－1HCN ( ).A. 0.025mol·kg－1B. 0.050mol·kg－1C. 0.20mol·kg－1D. 0.10mol·kg－111.K sp for SrSO4 is 4.0×10-8 at certain temperature. How much is the solubility of SrSO4 in H2O. ( )A. 4.0×10-8 mol·L-1B. 2.0×10-4 mol·L-1C. 8.0×10-8 mol·L-1D. 1.0×10-4 mol·L-112.Which substance can use as ampholyte in different solvent?( )A. Na NO3B. HAcC. NaClD. Na OH13. A solution is 0.15 mol·L-1 in Pb2+ and 0.20 mol·L-1 in Ag+. If a solid of Na2SO4 is added slowly to this solution, which option of the following is true? ( ) K sp for PbSO4 = 2.53×10-8, Ag2SO4 =1.20×10-5A. PbSO4 will precipitate out of solution firstB. Ag2SO4will precipitate out of solution firstC. PbSO4 and Ag2SO4 will precipitate out of solution simultaneouslyD. no precipitate14.pH of the solution in which 0.2 mol·L－1 H3A solution and 0.6 mol·L－1 NaOH solution are mixed in the same volume is ( ) (Ka1= 1.0×10-5 , Ka2= 1.0×10-7 , Ka3= 1.0×10-9)A. 5.0B. 6.5C. 11.0D. 1.015.缓冲溶液Which option of the following determines the capacity of a buffer ( )A. Conjugate acid-base pairB. Buffer-component ratioC. Buffer rangerD. p K a of the acid component16.The buffer range of a buffer solution prepared by mixing 100mL 0.2mol·L-1 H2A solution and 100mL 0.3mol·L-1 NaOH is about ( ). (pK a1=4.00; pK a2=9.00 )A. 3.00～5.00B. 5.00～7.00C. 8.00～10.00D. 9.00～11.0017.If two solutions are mixed in equal volume in each option listed below, which option has no buffer action? （）A. 0.2 mol·L-1 NaOH and 0.2 mol·L-1 KClB. 0.2 mol·L-1 HCl and 0.4 mol·L-1 NH3·H2OC. 0.1 mol·L-1 H3PO4 and 0.1 mol·L-1 Na2HPO4D. 0.1 mol·L-1 NaOH and 0.2 mol·L-1 HAc18.To prepare a buffer of pH 9, which buffer system listed below is the best? ( )A. 0.1 mol·L-1 HAc — 0.1 mol·L-1 NaAc (p K a = 4.75)B. 0.1 mol·L-1 NH3·H2O — 0.1 mol·L-1 NH4Cl (p K b = 4.75)C. 0.1 mol·L-1 H2CO3— 0.15 mol·L-1 NaOH(pK a1=6.37; pK a2=10.25 )D. 0.1 mol·L-1 HCN — 0.02 mol·L-1 NaCN (p K a = 9.5)Ⅱ. Simple answer question1.酸碱滴定Can 0.1000 mol·L-1 formic acid (HCOOH) of 20.00 mL be titrated by 0.1000 mol·L-1 NaOH standard solution directly? Please give reasons. What indicator can be used to signal endpoint (p K a = 3.75)?（5 marks）2.电解质溶液Pivaic acid is a monoprotic weak acid. A 0.100 mol·L-1 solution of pivalic acid has a pH=3.00. What is the pH of 0.100 mol·L-1 sodium pivalate at the same temperature?3. How many significant figures are there in each of the following numbers (assume that each number is a measured value)?3.25 0.0025 0.0203 2.3% 0.900 0.2530 1.3830 2.0 105 pH=3.21Final Examination PaperⅣⅠ. Monochoice questions1.酸碱滴定If you had to do the calculation of (22.83--21.43)/1.4000, what would be the correctresult of significant figure? ( )A. 0.10B. 0.100C. 1.00D. 1.0002.If the K HIn of a weak acidic indicator is 1.0×10-5, what is the color transition pH range of thisindicator? ( )A. 4-6B. 6-8C. 7-9D. 8-103.What result would be if NaOH solution was standardized against potassium hydrogen phthalate, the measured concentrations of the NaOH solution in the cases that the mass of potassium hydrogen phthalate should be 0.3510 g, but was recorded as 0.3570 g by mistake? ( )A. highB. lowC. unchangeD. uncertain4.How many grams of potassium hydrogen phthalate (KHC8H4O4) primary standard substance are required to standardize about 25 mL of 0.1 mol·L-1 NaOH solution? ( ) [Mr(KHC8H4O4)＝204 g·mol-1]A. 0.2550gB.0.5100gC. 0.05100gD. 1.0200g5.依数性How much is the normal freezing points of the solution in which 15.4g of urea is dissolved in 66.7 mL of water ? [K f=1.86 K·kg·mol-1 , Mr(CON2H4)=60.0] ( )A. -7.16℃B. 0℃C.-0.25℃D. 1.11℃6.The osmolarity of 1000 mL officinal solution in which it contains NaHCO3 of 6.45g·L -1 andKCl of 5.79 g·L -1 is ( ) mOsmol·L－1. [Mr(NaHCO3)=84, Mr(KCl)=74.5]A. 76.3B. 152.7C. 309D. 6107. A hemoglobin (Hb) solution of 1L is prepared by dissolving 35.0g of Hb into water. If the osmotic pressure of the solution is found to be 1.33kPa at 25℃. The molar mass of hemoglobin is ( ) .A. 537B. 5.37×10-4C. 6.52×104D. 1008.电解质8,9,10,11,12,13,14There is 1L 0.1mol·L－1NaHCO3solution with the addition of0.1mol NaCl solid. Which choice listed below is true? ( )A. pH unchanged, dissociation degree of HCO3 unchange.B. pH decrease, dissociation degree of HCO3 increase.C. pH increase, dissociation degree of HCO3 increase.D. pH increase, dissociation degree of HCO3 decrease.9.what is ionic strength ( I ) for 0.10 mol·kg－1 NaCl solution ( ) mol·kg－1.A. 0.025 mol·kg－1B. 0.050mol·kg－1C. 0.20mol·kg－1D. 0.10mol·kg－1PO ion is 3.3×10-7 10.In a saturated solution of calcium phosphate, the concentration of 34mol·L-1. the K sp of Ca3(PO4)2 is ( )A. 3.3×10-7B. 1.65×10-7C. 9.9×10-21D. 1.3×10-3211.Which substance can use as strong base in glacial acetic acid ?( )A. HAcB. NH3C. H2OD. H3PO412.A solution is 0.15 mol·L-1in Pb2+and 0.20 mol·L-1in Ag+. If a solid of Na2SO4is added slowly to this solution until the Ag+ starts to precipitate as the sulfate. What is SO42- concentration reached at least at this point? ( ) K sp for PbSO4 = 2.53×10-8, Ag2SO4 =1.20×10-5.A. 1.7×10-8B. 2.53×10-8C. 3.0×10-4D. 1.20×10-513.pH of solution in which 0.2 mol·L－1H3PO4solution and 0.2 mol·L－1Na3PO4solution are mixed in the same volume is ( D ) (Ka1= 7.5×10-3 , Ka2= 6.3×10-8 , Ka3= 2.2×10-13)A. 12.8B. 1.32C. 2.12D. 7.2114.125.0 mL of 0.40 mol·L-1 propanic acid, HPr, is diluted to 500.0 mL. What will the final pH of the solution be? (K a=1.0×10-5) ( )A. 3B. 11C. 5D. 9缓冲溶液15.The buffer range of a buffer solution prepared by mixing 100ml 0.2mol·L-1 H3PO4 solution and 100ml 0.5mol·L-1 NaOH is about ( ). (pK a1=2.16; pK a2=7.21; pK a3=12.32 )A. 1.16～3.16B. 6.21～8.21C. 8.00～10.00D. 11.32～13.3216.The color of the solution is yellow with the addition of methyl orange indicator and red with the addition of methyl red. In order to keep the pH of the solution stable, which buffer system listed below is the best? ( )A. 0.1mol·L-1 HAc — 0.1mol·L-1 NaAc (p K a = 4.75)B. 0.1mol·L-1 NH3·H2O — 0.1mol·L-1 NH4Cl (p K b = 4.75)C. 0.1mol·L-1 NaH2PO4 — 0.1mol·L-1 Na2HPO4(pK a2=7.21 )D. 0.1mol·L-1 HCN — 0.1mol·L-1 NaCN (p K a = 9.5)17.Which option has largest increase of pH when add 0.5mL of 0.1 mol·L-1NaOH in the following solution? ( )A. 0.1 mol·L-1 HAc — 0.1 mol·L-1 NaAc (p K a = 4.75)B. 0.1 mol·L -1 NH 3·H 2O — 0.1 mol·L -1 NH 4Cl (p K b = 4.75)C. 0.1 mol·L -1 H 2CO 3 — 0.15 mol·L -1 NaOH (pK a1=6.37; pK a2=10.25 )D. 0.1 mol·L -1 HCN — 0.02 mol·L -1 NaCN (p K a = 9.5)18. To prepare a buffer of pH 10.5, which buffer system listed below is the best? ( )A. CH 3NH 2·HCl —CH 3NH 2 (p K a =10.65)B. NH 3·H 2O —NH 4Cl (p K a =9.25)C. Na 3PO 4 —Na 2HPO 4 (pK a3 = 12.32)D. H 2CO 3—NaHCO 3 (pK a1=6.37)Ⅱ.Calculation1. 电解质Ethylamine, CH 3CH 2NH 2, has a strong, pungent odor similar to that ammonia. Likeammonia, it is a base. A 0.10 mol·L -1 solution has a pH of 11.86. Calculate the K b for theethylamine, and find K a for its conjugate acid, 323NH CH CH .2. Calculate the osmotic pressure of 0.020mol·L-1 NaCl solution at 25 ℃.3. (1) 0.1mol·L-1 HAc solution 。
化学英语考试卷及答案
第1页，共4页第2页，共4页任课教师签名：刘生桂 命题教师签名：刘生桂 系主任签名： 主管院长签名：湛江师范学院2010年－ 2011学年度第1学期期末考试试题(考试时间: 120 分钟)考试科目：化学专业英语一 词汇题 (20分)1 无机化学 Inorganic chemistry 11 结晶 crystal2 配位化学 coordination chemistry 12 室温 room temperature3 酸 acid 13 回流 reflux 4碱 alkali 14 克 gram5 氧气 oxygen gas 15 臭氧 ozon6 氮气 nitrogen gas 16 摘要 summary7 烧杯 beaker 17 结果 result8 试管 test tube 18 蒸发 evaporation9 酒精灯 spirit lamp 19 蒸馏 distillation 10 纯化 purification 20 甲烷 methane二 翻译题 （共60分）1 if you decide to go into agriculture, you will need to know about fertilizersandpesticides,as well as animal nutrition. Even if you enter some profession thatseems to have no connection with chemistry, such as law, you will find a knowledge of chemistry very wyers freguently have to deal with patents that concern chemical inventions.Some members of the U.S. Congress have had extensive chemical training,which gives them a great advantage in discussions of enviromental pollution, nuclear energy,the regulations of the Food and Drug Administration, and in other legislation that concerns scientific matters.如果你决定进入农业,你需要知道化肥和杀虫剂,以及动物营养。
化学专业英语试卷A答案
2012—2013学年度第一学期应用化学专业《专业英语》课程试卷（A）考生务必将自己姓名、学号、专业名称写在指定位置；注意事项：1.密封线和装订线内不准答题。
2.题号一二三四总分分数评卷人选分（写出下列每个词汇对应的英一、词汇填空分）1分，共20汉单词）（共20小题，每空）（chemical property1、化学性质）（physical property 2、物理性质）solubility 3、溶解度（）density 4、密度（）、沸点（boiling point 5 ）、熔点（melting point 6 ）reaction 7、反应（inorganic）8、无机的（）、有机的（organic9 ）（c ompound 10、化合物）（alkane 11、烷烃）ethanol 、乙醇12 （）alkene 13、烯烃（）alkyne 14、炔烃（）（酯ester 15、）醚（、16ether）丙酮（17、acetone）甲醛（、18formaldehyde）（氨19、ammonia）苯（、20benzene10 二、给下列无机化合物的英语名称（共评卷人选分分）2分，共20小题, 每小题calcium oxide CaO 、1perchloric acidHClO、2 4copper sulfateCuSO、3 4sodium bromide NaBr 、4sodium chloride NaCl、5HNOnitric acid、6 3HNO nitrous acid 、7 2AlOaluminum oxide 、8 3 2KNOpotassium nitrate、9 3FeBr ferric bromide 、103三、给下列有机化合物的英语名称（共5小选分评卷人20分）, 每小题4分，共题 1.辛烷octane=CHCHCH321-butenebutanolethyl methyl etherH CO(CH)224hexanoic acid四、英译汉（共10小题, 每小题4分，共40分）评卷人选分The properties of substances are their characteristic qualities. The 1、physical properties are those properties of a substance that can beobserved without changing the substance into other substances.物质的性质是它们的特别品质。
化学专业英语试卷
2009 —2010学年第一学期化学与材料学院（系）07级应用化学专业《专业英语》期末试卷1.Write the structural formula or Chinese name for each of the following(2% for each answer):（1）barium ion: （2）chlorate ion:（3）potassium ion: （4）carbonic acid:（5）ammonium ion: （6）pyrrole:（吡咯）（7）polystyrene: (聚苯乙烯) （8）p-hydroxybenzoic acid:(对羟基苯甲酸)（9）benzonitrile (苄腈) （10）critical pressure: （临界压力）（11）methanal: （甲醛）（12）buffer solution :（缓冲溶液）（13）alkali burette:（碱式滴定管）（14）extract ：(萃取) （15）tetrasulfur dinitride: （S4N2）（16）aldose:（醛醣）（17）sodium dihydrogenphosphate (磷酸二氢钠)（18）zinc oxide:（19）6-ethyl-4-methyldecane:（20）quantitative analysis: （定量分析）2.Write the English name for each of the following(2% for each answer):（1）IBr: （2）天平（balance）（3）阴离子(anion) （4）H2SO3（5）滴液漏斗: （dropping funnel）（6）CuNO3:（7）AgF: （8）滴定（n.）:(titrate)（9）Ca(MnO4)2: （10）辛醇:（11）十三烷：（12）(CH3CH2)2Hg: (diethylmercury)（13）CH3CHCH CH2CH3:（14）CH3CH2CHCOOHCH3:（15）CHOHONH2：（2-amino-5-hydroxybenzaldehyde）3.Translate the following paragraphs into Chinese:(1)Pick the size of your separatory (sep.) funnel. You will usually use 125 or250-mL, large scale reactions (1–10 g) can require 500-mL or 1-L sizes.Remember that your sep. funnel will contain the solvent and wash liquid which must be thoroughly mixed.(5% for the answer)参考答案：挑选出你要的分液漏斗的大小。