盐类水解的程度一般很微弱,通常不考虑它的影响,但以下一些情况必须应用到盐类水解知识.一、判断弱酸弱碱的相对强弱根据盐的组成及水解规律——“谁弱谁水解,谁强显谁性”,可以判断盐溶液的酸碱性;根据“越弱越水解”,可以比较溶液中酸碱性的相对强弱.例1用一价离子组成的四种 The degree of salt hydrolysis is generally very weak and usually does not consider its effects, but the following situations must be applied to salt hydrolysis knowledge. First, determine the relative strength of weak acids and weak bases according to the salt composition and hydrolysis rules - “Who is weak Who hydrolyzed, who will show who is strong, can judge the acidity and alkalinity of the salt solution; According to ”the weaker the more hydrolysis", you can compare the relative strength of the acidity in the solution. Example 1 Four kinds of ions