| 1.A suitable indicator should be chosen, preferably one that will experience a change in color (an end point) close to the equivalence point of the reaction.译文： 应该选择合适的指示剂，最好是选择那种在反应终点会改变性质的物质。 | |
| | 2.The end point reaches when the indicator just changes color permanently.译文：当指示剂刚变色时就达到了滴定终点。 | |
| | 3.This is best achieved by washing a hanging drop from the tip of the burette into the flask right at the end of the titration to achieve a drop that is smaller in volume than what can usually be achieved by just dripping solution off the burette.译文：这一目标（指反应终点）可通过在滴定即将结束时，利用蒸馏水清洗悬挂于滴定管尖端的液滴并汇入烧瓶来实现，该液滴体积上要比通常从滴定管滴下的液滴小得多。 | |
| | 4.In organic chemistry, compounds composed of carbon and hydrogen are divided into two classes: aromatic compounds, which contain benzene rings or similar rings of atoms, and aliphatic compounds, which do not contain aromatic rings.译文：在有机化学中，由碳和氢组成的化合物可分为两大 | |
| | 5.The equivalence point of the reaction, the point at which equivalent amounts of the reactants have reacted, will have a pH dependent on the relative strengths of the acid and base used.译文：反应的等当点，即为反应物等量反应的那一点，其pH值依赖于使用的酸和碱的相对强度。 | |
| | 6.In the International Union of Pure and Applied Chemistry (IUPAC) system of chemical nomenclature, the name of an alkene is derived from the name of the corresponding alkane by replacing the -ane alkane suffix with -ene and, if necessary, adding a prefix to indicate the location of the double bond in the molecule.译文：在国际理论和应用化学联合会化学命名法系统中，烯烃的名称来源于相应的烷烃，用-ene取代烷烃的后缀-ane，如果必要的话，添加一个前缀表示分子中双键的位置。 | |
| | 7.The alchemists believed that metals could be converted into gold with the aid of a marvelous mineral called the philosopher's stone, which they never succeeded in finding or making. 译文： 炼金师们相信在一种令人惊异的矿物——点金石的帮助下，金属能够转变成黄金，但他们从未成功地找到或制成这种石头。 | |
| | 8.The atom consists of a central, positively charged core, the nucleus, and negatively charged particles called electrons that are found in orbits around the nucleus.译文： 原子由中心带正电荷的原子核，以及在围绕原子核的轨道上运动的带负电的微粒电子组成。 | |
| 1.脂肪酸 | |
| | 2.equivalence point | |
| | 3.熔点 | |
| | 4.碱式滴定管 | |
| | 5.2-methyl propane | |
| | 6.弱碱 | |
| | 7.Bunsen burner | |
| | 8.实验装置 | |
| | 9.neutralization reaction | |
| | 10. in the proper proportions | |
| | 11.酸碱指示剂 | |
| | 12.芳香族化合物 | |
| | 13.chemical symbol | |
| | 14.atomic weight | |
| | 15.Standard Solution | |
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