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15问答网 > 为什么饱和氯化钾要加0.3ml进行PH测定？

为什么饱和氯化钾要加0.3ml进行PH测定？

2025-03-16 07:22:16

推荐回答（1个）

回答1：

氯化钾在20度的溶解度是34克，故20度下饱和氯化钾溶液浓度为（34/ 100+34）25.37%,那么100克改溶液中含KCL25.37克，其摩尔质量为0.3405mol，则其摩尔浓度为0.3405mol/0.1L=3.405mol/L

所以这都会影响PH值

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