人教版选修四有关电解质溶液的知识内容是高中化学的重要基础理论之一,也是很多学生学习的难点.尤其是涉及离子浓度大小比较问题和守恒关系,学生的得分率普遍较低.通过多年的教学摸索,我觉得主要的原因是学生对弱电解质的电离、盐类的水解等相关知识理解不透彻,常常不 PEP elective four knowledge of electrolyte solution is one of the important basic theory of high school chemistry is also difficult for many students to learn, especially in relation to the ionic concentration of the size of the comparison and conservation of the relationship between the students generally low scoring rate through years Teaching and exploration, I think the main reason is that students of weak electrolyte ionization, salt hydrolysis and other related knowledge is not thorough, often not