The solubility of PbCO3(s) in water at a certain temperature is 3.2 × 10–7 mol/L. Calculate the valueof Ksp for BaCO3(s) at this temperature?

2020-08-11 5:10 pm

回答 (1)

2020-08-11 6:27 pm
PbCO₃(s)   ⇌  Pb²⁺(aq)   +   CO₃²⁻(aq)       Ksp = ?
Eqm:        3.2 × 10⁻⁷ M    3.2 × 10⁻⁷ M

At equilibrium: Ksp
= [Pb²⁺] [CO₃²⁻]
= (3.2 × 10⁻⁷)²
= 1.0 × 10⁻¹³


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