“摩尔”是国际单位制中七个基本单位之一,对化学工作者来说是一个极重要的概念。但是长期来对它的认识是不清晰的,有人把它看成是质量单位,有人看成是数量单位,有人说既是质量单位又是数量单位。 在第十四届国际计量会议后为摩尔这个旧名称引入了一个新的物理量——“物质的量”,我觉得把这个量的含义讲清了,作为这个量的 “Moore” is one of the seven basic units in the International System of Units. It is an extremely important concept for chemists. However, long-term understanding of it is unclear. Some people regard it as a unit of quality. Some people regard it as a unit of quantity. Some people say that it is both a unit of quality and a unit of quantity. After the Fourteenth International Measure Conference, a new physical quantity was introduced for the old name of Moore, the “quantity of matter.” I think that the meaning of this quantity was made clear, as a measure of this quantity.