Ionic EquilibriumHard

Question

Which of the following is most soluble in water:

Options

A.MnS (KSP = 8 × 10-37 )
B.ZnS (KSP = 7 × 10-16)
C.Bi2S3 (KSP =  × 10-70)   
D.Ag2S (KSP = 6 × 10-51)

Solution

Find solubility for each separately by S2 = KSP for MnS and ZnS. 108S5 = KSP for Bi2S3 and 4S3 = KSP for Ag2S.

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