Diketahui Ksp Ca (OH)2= 5x10-7 tentukan kelarutan dan Ph jernih larutan Ca (OH) 2

A. Kelarutan = (5x10^-7/4)^1/3
= (1/8) x 10^-2
B. [OH-] = 2 x kelarutan
= 2(1/8 x 10^-2) = 1/4 x 10^-2
pOH = - log (1/4 x 10^-2) = 2 + log 4
pH = 12 - log 4

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