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What is the solubility ( in g/L) of lead(II) chromate, PbCrO4 in 0.13M potassium chromate, K2CrO4.

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What is the solubility ( in g/L) of lead(II) chromate, PbCrO4 in0.13M potassium chromate, K2CrO4.

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Â Â Â Â Â PbCrO4 --------> Pb⁺² + CrO4^2-

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.13

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â sÂ Â Â Â Â Â Â Â Â Â Â s

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â sÂ Â Â Â Â Â Â Â Â Â 0.13+s

Ksp of PbCrO4 is 2.8*10^-13

KspÂ Â Â Â = [Pb⁺²][CrO4^2-]

2.8*10^-13Â Â Â = s * (0.13+s)

Â Â Â Â Â Â sÂ Â Â Â Â Â Â Â Â Â = 2.15*10^-12 mole/L

Â Â solubility of PbCrO4Â Â = 2.15*10^-12 moles/L

molar mass of PbCrO4Â Â = 323g/mole

solubility of PbCrO4Â Â = 2.15*10^-12 moles/L * 323g/moles

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â = 6.94*10^-10 g/L

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

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