tolong di jawab ya bos.... pleaseee

No 23.
Kelarutan = s
s = massa/Mr x 1000/mL
s = 1,16 x 10^-2/58 x 1000/100
= 2 x 10^-3
Mg(OH) -> Mg^2+ + 2OH^- (3 ion)
Ksp = 4s^3 = 4(2 x 10^-3)^3
= 3,2 x 10^-8

No 24
CaCO3 -> Ca^2+ + CO3^2- (2 ion)
Ksp = s^2 ; s = √Ksp = √2,5 x 10^-9
s = 5 x 10^-5 mol/L
s = massa/Mr x 1000/mL
5 x 10^-5 = massa/100 x 1000/500
Massa = 2,5 x 10^-3 g

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