目前,国内外通常采用X—射线衍射、单分子膜以及电解等方法来测定阿佛加德罗常数。用X—射线衍射法测定的数据是很精确的。但是设备费用高,操作复杂,不适合一般中学教学使用。单分子膜法测定阿佛加德罗常数有时能得到好的结果。但是由于测定值易受其它因素的影响(如溶液的浓度、形成膜容器的形状以及操作技术等方面的影响),因此重现性不够好。另一方面,用它作为高中一年级学生的实验在化学知识方面也有一定的差距。如:(1),实验是使 At present, the domestic and foreign methods such as X-ray diffraction, monolayer and electrolysis are usually used to determine the Avogadro’s number. The data measured by X-ray diffractometry is very accurate. However, the high cost of equipment, complex operation, not suitable for general secondary school teaching. The determination of Avogadro’s number by the monolayer method can sometimes give good results. However, the reproducibility is not good enough because the measured values ​​are easily influenced by other factors such as the concentration of the solution, the shape of the membrane container, and the operation technique. On the other hand, experiments with it as a freshman in high school also have some gaps in chemical knowledge. Such as: (1), the experiment is to make