| 赵梦月,赵建宏.化学通报,2021,84(2):182-184. |
| 等物质的量定律及其应用 |
| Law of Equal Amount of Substance and Its Application |
| 投稿时间：2020-07-21 修订日期：2020-09-02 |
| DOI： |
| 中文关键词: 物质的量 基本单元 等物质的量定律 |
| 英文关键词:Amount of substance Elementary entity Law of equal amount of substance |
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| 中文摘要: |
| 本文指出了滴定计算中等物质的量规则的缺陷，并提出了等物质的量定律，将这个反映化学反应客观规律的定律定义为：在氧化还原反应体系中氧化剂与还原剂得与失电子的物质的量相等；在酸碱反应体系中酸与碱得与失质子的物质的量相等；在沉淀反应中阳离子与阴离子所具有电荷的物质的量相等；在络合滴定中金属离子与氨羧络合剂的物质的量相等。等物质的量定律可用下式表达：∑i=1i=kΔn（1/zAi）Ai=∑i=1i=pΔn（1/zBi）Bi。这个定律及其表达式能使复杂的滴定分析计算简单化、规范化。 |
| 英文摘要: |
| The paper presents a strict definition for the law of equal amount of substance in titration: the amount of substance of electron lost is equal to the amount of substance of electron got in oxide-reduction titration; the amount of substance of proton lost equals the amount of substance of proton got in neutralization titration; the amount of substance of negative charge equals the amount of substance of positive charge in precipitation titration; the amount of substance of metal ions is equal to the amount of substance of complexone in complexometry. The law can be expressed by follow formula, ∑i=1i=kΔn(1/zAi)Ai=∑i=1i=pΔn(1/zBi)Bi. The definition and formula can simplify and standardize complex titration calculations. |
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