学员们在中学化学教学中已熟悉了许多物理量的定义及所使用的单位,在无机化学的学习中将会遇到更多的物理量及单位,搞清这些物理量的定义,正确使用单位,对于理解有关概念、进行化学计算是非常重要的。但目前有些教材中有关物理量的定义的说法及单位的使用有些混乱,其中有些是不妥当的。根据国务 The students have become familiar with the definition of many physical quantities and the units used in chemistry teaching in middle schools. In the study of inorganic chemistry, they will encounter more physical quantities and units, find out the definition of these physical quantities, and correctly use the units for understanding. It is very important to carry out the concept and carry out chemical calculations. However, at present, there are some arguments about the definition of physical quantities and the use of units in some textbooks. Some of them are not appropriate. According to State Affairs