WhatisthepHof7.51x10^-8mol/LHCl(aq)?Giveyouransweraccuratetotwodecimalplaces.Note:Youaredealingwithaverydilutesolutionofaverystrongacid.Thinkcarefully!Oneapproachistowritedownmassandchargebalanceequat
<p>问题：WhatisthepHof7.51x10^-8mol/LHCl(aq)?Giveyouransweraccuratetotwodecimalplaces.Note:Youaredealingwithaverydilutesolutionofaverystrongacid.Thinkcarefully!Oneapproachistowritedownmassandchargebalanceequationsandall<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">蔡若虹的回答：<div class="content-b">网友采纳 假设由水电离的c(H+)=x,则c(OH-)=x 盐酸电离的氢离子浓度=c(HCl)=7.51x10^-8 溶液中的氢离子浓度=x+7.51x10^-8 溶液中的氢氧根浓度=x 在水溶液中,总氢离子浓度乘以总氢氧根浓度等于水的离子积 所以x(x+7.51x10^-8)=10^(-14) 可以解出x 进而求出x+7.51x10^-8 进而算出pH值 没有计算
页:
[1]