tentukan konsentrasi ion H dan OH dalam larutan 0,15M (CH3COO)2Ca (Ka=1,5×10 pangkat -5

[OH-] = √Kw / Ka . n . M
[OH-] = √10^-14 / 15 x 10^-6 . 2 . 15 x 10^-2
[OH-] = √10^-8 . 10^-2 x 2
[OH-] = √10^-10 x 2
[OH-] = √2 x 10^-5

pOH = 5 - log√2

pH = 9 + log√2
pH = 10 - log7

[H+] = 7 x 10^-10