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NaI ⇒ Na⁺ + I⁻
0,1 M : 0,1 : 0,1
AgI ⇒ Ag⁺ + I⁻
s : s
ion sejenis = I⁻ = 0,1 + s
≈ 0,1
ksp= [Ag⁺] [I⁻]
10⁻¹¹ = S . 0,1
s = 10⁻¹¹/10⁻1
s = 10⁻¹⁰