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Question
Write the relationship between solubility and solubility product for PbI2.
Solution
Solubility equilibrium for PbI2, is given by,
\[\ce{PbI2_{(s)} ⇌ Pb^{2⊕}_{(aq)} + 2I^⊖_{(aq)}}\]
∴ x = 1, y = 2
∴ Ksp = (1)1 (2)2 S1+2
∴ Ksp = 4 S3
The above expression shows the relationship between solubility and solubility product for PbI2.
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