常温下取0.2mol/L的HCl溶液与0.2mol/L的MOH溶液等体积混合,恰好完全反应,测得混合溶液的pH=6
求(1)混合溶液中由水电离出的c(H+)与O.2mol/L的HCl溶液中由水电离出的c(H+)大小关系
(2)c(H+)-c(MOH)=
人气:107 ℃ 时间:2019-09-17 04:47:09
解答
(1)反应后得到的溶液为0.1mol/L的MCl溶液因为pH为6所以所有的H+都是有M+水解得到的,也就是由水电离出来的[H+]=10^-6 mol/L0.2mol/L的HCl溶液中[H+]=0.2mol/L所以[OH-]=5*10^-14mol/L也就是水电离出的[H+]=5*10^-14...
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