For each of the salts on the left, match the salts on the right that can be comp

Question

For each of the salts on the left, match the salts on the right that can be compared directly, using K_sp values, to estimate solubilities. (If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g. ABC.) manganese(II) sulfide Ag_2SO_3 lead fluoride FeS CaSO_3 CaSO_4 Write the expression for K in terms of the solubility, s, for each salt, when dissolved in water. Zinc phosphate is MORE soluble than zinc phosphate is LESS soluble than Ba_3(PO_4)_2 PbSO_4 Pb_3(PO_4)_2 AgBr

Explanation / Answer

MnS (s) <---------------> Mn2+ (aq.) + S2- (aq.)

Manganese(II)sulphide

Ksp = [Mn2+][S2-]

Ksp = S * S

Ksp = S2  

Lead fluoride,

PbF2 (s) <-------------> Pb2+ (aq.) + 2 F- (aq.)

Ksp = [Pb2+][F-]2

Ksp = S * S2

Ksp = S3

*****

Ksp of zinc phosphate = 9.0 * 10-33

Ksp of Barium phosphate = 3 * 10-23

Ksp of PbSO4 = 1.8*10-8

Ksp of Pb3(PO4)2 = 7.9*10-43

Ksp of AgBr = 5.4*10-13

SO, zinc phosphate is more soluble than lead phosphate

zinc phosphate is less soluble than Barium phosphate, lead sulphate, silver bromide.

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