For each of the salts on the left, match the salts on the right that can be comp
ID: 500412 • Letter: F
Question
For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp 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.) 1. lead sulfide 2. silver phosphate
A. Al(OH)3 B. BaSO3 C. FeCO3 D. CaSO3
Write the expression for K in terms of the solubility, s, for each salt, when dissolved in water. lead sulfide, silver phosphate
Explanation / Answer
Based on Ksp values
1. A
Lead sulphide is nearly insoluble like Al(OH)3.
2. B,D
Solubility of silver phosphate is comparable to BaSO3 and CaSO3.
Expression of Ksp
For lead sulphide:- K=[Pb2+][S2-]
Silver phosphate:- K=[Ag+]3[PO43-]
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