0.1摩尔的磷酸二氢钠水溶液PH值为多少?
问题描述：
0.1摩尔的磷酸二氢钠水溶液PH值为多少?
答
答：[H+] = [Ka1Ka2C/(C+Ka1)]^1/2 = [10^-2.12x10^-7.2-x0.1/(10^-2.12+0.1)^1/2=4.15
0.1摩尔的磷酸二氢钠水溶液PH值为多少?
答：[H+] = [Ka1Ka2C/(C+Ka1)]^1/2 = [10^-2.12x10^-7.2-x0.1/(10^-2.12+0.1)^1/2=4.15