试题与答案

下列公式中哪一个能用来精确地计算任意浓度[c(HCl)]的HCl水溶液中氢离子浓

题型:选择题

题目:

下列公式中哪一个能用来精确地计算任意浓度[c(HCl)]的HCl水溶液中氢离子浓度

[c(H+)](Kw为水的离子积常数)                                                                        (   )                                           

A.c(H+)="c(HCl)"

B.c(H+)=c(HCl)+Kw/c(H+)

C.c(H+)=c(HCl)+Kw

D.c(H+)=c(HCl)−Kw/c(H+)

答案:

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