阿伏加德罗常数是高中化学中重要的基本概念,有关阿伏加德罗常数的题目,具有较好的区分度,是高考中常考不衰的热点。这类题一般以选择题形式出现,考查结构、水解、电离、可逆反应、氧化还原反应等知识,而且出题人经常有意设计一些限制条件或迷惑性条件。本文把这类题中常考的知识点归纳总结,指出常见的易错点,希望对考生有所帮助。一、气体摩尔体积22.4 L/mol是指标准状况下(即0℃,101k Pa)的气体摩尔体 Avogadro constant high school chemistry is an important basic concept, the Avogadro constant topic, with a good degree of distinction, is the entrance examination often unflinching hot. Such questions generally appear in the form of multiple-choice questions, examining the knowledge of structure, hydrolysis, ionization, reversible reactions, redox reactions, etc., and the subject person often intends to devise some restrictive or confusing conditions. This article summarizes the knowledge of these exam questions, points out the common error-prone point, hope to help the examinee. First, the gas molar volume 22.4 L / mol refers to the standard conditions (ie 0 ° C, 101k Pa) gas molar body