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正盐的水溶液显什么性,要视其水解的情况而定。一般而言,强酸弱碱盐的水溶液显酸性,强碱弱酸盐的水溶液显碱性,弱酸弱碱盐的水溶液可能显酸性,可能显碱性,也可能显中性,而强酸强碱盐不水解,其水溶液显中性。 酸式盐的水溶液,是不是也遵循上述规律呢?如果是这样的话,NaH2PO4、Na2HPO4和NH4HCO3的水溶液都应显碱性,而NaHSO4的水溶液就一定显
What is the nature of the salt solution, depending on the hydrolysis of its situation. In general, the strong acidic weak alkali salt aqueous solution was acidic, strong alkali weak acid salt aqueous solution was alkaline, weak acid weak base salt aqueous solution may be acidic, may be significant alkaline, may also be significantly neutral, and strong acid alkali salt Not hydrolyzed, its aqueous solution was neutral. Acidic salt solution, is not also follow the above rules? If so, the aqueous solution of NaH2PO4, Na2HPO4 and NH4HCO3 should be significantly alkaline, and NaHSO4 aqueous solution will be significant