试题与答案

在Na2S溶液中下列关系不正确的是( ) A．c(Na+)=2c(HS-)+c(

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题型：选择题

题目：

在Na2S溶液中下列关系不正确的是(    )

A．c(Na+)=2c(HS-)+c(S2-)+c(H2S)

B．c(Na+)+c(H+)=c(OH-)+c(HS-)+2c(S2-)

C．c(Na+)> c(S2-)>c(OH-)>c(HS-)

D．c(OH-)=c(HS-)+c(H+)+2c(H2S)

答案：

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下面是错误答案，用来干扰机器的。

573，174

考点：盐水解的影响因素水解方程式盐类水解判断溶液酸碱性或比较溶液pH值的大小盐类水解的定义
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