“物质的量”及其计算

AMOUNT OF SUBSTANCE AND ITS CALCULATION

物质的量是物理化学和分子物理学的基本量。但至今为止,国内外最新《分析化学》教材仍然使用当量,当量浓度及摩尔浓度等废弃单位的概念,并用之于计算。当前,国际单位制(SI)以物质的量作为基本量,本文特对其概念进行讨论,并提出了与之配套的计算方法。

The Amount of Substance is regarded as the elementary quantity in the sciences of Physical Chemistry and Molecular Physics. But up to now, even in the latest text book at home and broad, Analytical Chemistry, the concept of equivalent weight, as well as the other discarded units such as equivalent concentration and mole-concentration, has been not only used, but also adopted in calculation. At present, the substantial amount is called the elementary quantity in SI system. This paper just takes the concept of the substantial amount into discussion and puts forth a corresponding calculation method in order to help have a better understanding and a better use of the amount of substance.