电解质溶液中微粒浓度大小的比较问题,是高考的“热点”之一,也是教学的重点、难点之一。这类题型的特点是:考查的知识点多;灵活性、综合性较强;有较好的区分度,它能有效地测试出学生对强弱电解质、电离平衡、水的电离、pH、离子反应、盐类水解等基本概念的掌握程度及对这些知识的综合运用能力。为突破此问题,现介绍几种判断方法: The comparison of the particle concentration in the electrolyte solution is one of the “hot spots” in the college entrance examination and is also one of the key and difficult aspects of teaching. The characteristics of this type of question are: more knowledge points for examination; greater flexibility and comprehensiveness; better discrimination; it can effectively test students’ strong and weak electrolytes, ionization balance, water ionization, pH, The mastery of basic concepts such as ion reaction, salt hydrolysis, and the ability to use these knowledge comprehensively. In order to break through this issue, we now introduce several methods of judgment: