“物质的量”这一核心概念,是整个中学化学计算的核心。为此,复习好这一核心概念及掌握好其运用范围,对整个中学化学所涉及各种相关计算,特别是综合性计算问题,无疑会起着非常重要的作用。本文将复习好这一核心概念所应明确的问题及运用作如下阐述,以期能对同学们有所帮助。 The core concept of “quantity of matter” is the core of the entire secondary school’s chemical calculation. For this reason, reviewing this core concept and mastering the scope of its application will undoubtedly play an important role in the calculation of various related calculations, especially the comprehensive calculation, of the entire secondary school chemistry. This article will review the key concepts of this core issue should be clearly defined and used as described below, with a view to be able to help students.