Problem: In which solution is BaSO4 most soluble?(a) a solution that is 0.10 M in Ba(NO3)2(b) a solution that is 0.10 M in Na2SO4(c) a solution that is 0.10 M in NaNO3

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FREE Expert Solution

common ion effect → solubility of a salt is lower in the presence of a common ion.

BaSO4:

BaSO4(s) ⇌ Ba2+(aq) + SO42–(aq)


(a) a solution that is 0.10 M in Ba(NO3)2

Ba(NO3)2(s) ⇌ Ba2+(aq) + 2 NO3(aq)

Common ion: Ba2+(aq) 


(b) a solution that is 0.10 M in Na2SO4

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Problem Details

In which solution is BaSO4 most soluble?
(a) a solution that is 0.10 M in Ba(NO3)2
(b) a solution that is 0.10 M in Na2SO4
(c) a solution that is 0.10 M in NaNO3

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Based on our data, we think this problem is relevant for Professor Buckley's class at WSU.