Jawabanmu

2014-05-03T21:13:31+07:00

(3). 

pH = 10.5 

pOH = 14 - 10.5 = 3.5 

[OH^-] = 10^-3.5 M 

Ksp Mg(OH)2 = [Mg^2+][OH^-]^2 

Ksp Mg(OH)2 = [0.5 * 10^-3.5][10^-3.5]^2 

Ksp Mg(OH)2 = 1.58114 * 10^-11 <--

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