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高中化学课本第二册P.19在讲到弱酸弱碱盐——CH_8COONH_4水解时写道:“很清楚,由于这种盐的弱酸根和弱碱根能分别跟水里的H~+和OH~-结合生成难电离的CH_8COOH和NH_8·H_2O,破坏了水的电离平衡,从而使水的电离强烈地向右移动。”联系上文这段话的意思就是说,弱酸弱碱盐是一类比强酸弱碱盐、强碱弱酸盐水解强烈的盐,其理由是,弱酸弱碱盐同时有弱酸根和弱碱根两种因素促使水分解,而其他两类只有弱酸根或弱碱根一种因素促使水分解。
When the weak acid base salt, CH_8COONH_4, was hydrolyzed, high school chemistry textbook book P.19 wrote: “It is clear that the weak acid and weak alkali of this salt can be separated from the H+ and OH of the water, respectively. The combination of ~-generating CH_8COOH and NH_8·H_2O, which are difficult to ionize, destroys the ionization balance of the water, which causes the ionization of the water to move strongly to the right." This means that the weak acid and base salt is a type of analogy. Strong acid and weak base salts, strong bases and weak acid salts to hydrolyze strong salts. The reason is that weak acid and weak base salts have both weak acid and weak alkalinity factors to promote water decomposition, while the other two types only have weak acid or weak alkali. The factors promote water decomposition.