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酸式盐溶液的酸碱性如何判断
更新时间: 2020-09-18 00:00:00  

弱酸酸式盐溶液中,酸式酸根离子既存在电离又存在水解,二者使溶液的酸碱性也相反,理论上是通过比较二者强弱,来确定溶液的酸碱性,但在实际操作过程中,其实是先记得结论,然后反推电离和水解谁强谁弱的显酸性的有:亚硫酸氢钠,磷酸二氢钠,草酸酸式盐,其余的弱酸酸式盐溶液显碱性,如碳酸氢钠,硫氢化钠,硫酸氢钠,只有电离,因此 溶液显示酸性。

关键词: 酸式盐 溶液 碱性 如何 判断

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