电解质溶液中粒子浓度的大小比较是历年高考命题的热点,该类题目的主要特点有两个:一是比较同一溶液中各种不同微粒浓度大小,其方法思路是:首先确定溶液中电解质的种类,然后再分析电解质的电离和水解程度的相对大小。二是比较不同溶液中同一离子浓度的大小,在分析解答过程中要注意盐类水解及程度大小对该微粒浓度大小的影响。从试题的变化趋势 Electrolyte solution particle size comparison is the hot topic of college entrance examination over the years, the main features of this topic there are two: First, compare the same solution of different particle size, the idea is: First determine the type of electrolyte solution , And then analyze the relative size of the ionization and hydrolysis of the electrolyte. The second is to compare the size of the same ion concentration in different solutions, pay attention to the effect of salt hydrolysis and extent of the concentration of the particles in the analysis and solution process. Change trend from test questions