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0,01 0,02 0,01
PbCO3 => Pb²⁺ + CO3²⁻
s s s
Ksp PbCO3 = [Pb²⁺][CO3²⁻]
7,4 x10⁻¹⁰ = [s] [0,01]
s = 7,4 x10⁻⁸ mol/liter