C
对醋酸来说:CH3COOH CH3COO- +H+
加入PH=3的盐酸,体积增加一倍,则 [ CH3COO-]和[CH3COOH]的浓度减少一倍,而K是定值不变,则K=[ CH3COO-][ H+]/[CH3COOH]中[ H+]不变,混合后溶液的PH=3
怎样算溶液的PH值,麻烦给回复
C
对醋酸来说:CH3COOH CH3COO- +H+
加入PH=3的盐酸,体积增加一倍,则 [ CH3COO-]和[CH3COOH]的浓度减少一倍,而K是定值不变,则K=[ CH3COO-][ H+]/[CH3COOH]中[ H+]不变,混合后溶液的PH=3