Problem: Here is the chemical reaction that represents solid lead sulfate dissolving in water:PbSO4(s) ⇌ Pb2+(aq) + SO42−(aq)Ksp = 1.8 × 10−8In which of the following would lead sulfate be least soluble?a) pure waterb) 1 M KNO3c) 1 M Na2SO4In which of the following would lead sulfate be most soluble?a) 1 M NaNO3b) 1 M H2SO4c) 1 M Pb(NO3)2d) 1 M CuSO4

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Part A

a) pure water no effect on solubility

b) no common ion  no effect on solubility

c) common ion: SO42- decrease solubility


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Problem Details

Here is the chemical reaction that represents solid lead sulfate dissolving in water:

PbSO4(s) ⇌ Pb2+(aq) + SO42−(aq)

Ksp = 1.8 × 10−8


In which of the following would lead sulfate be least soluble?

a) pure water

b) 1 M KNO3

c) 1 M Na2SO4


In which of the following would lead sulfate be most soluble?

a) 1 M NaNO3

b) 1 M H2SO4

c) 1 M Pb(NO3)2

d) 1 M CuSO4