The addition of solid Na 2 SO 4 to anaqueous solution in equilibrium with solid

Question

The addition of solid Na2SO4 to anaqueous solution in equilibrium with solid BaSO4 willcause A. no change in the [Ba2+] in solution. B. more BaSO4 to dissolve C. precipitation of more BaSO4 D. an increase in the Ksp of BaSO4 BaSO4(s) Ksp @ 25°C = 1.5 x10-9 Please EXPLAIN youranswer. The addition of solid Na2SO4 to anaqueous solution in equilibrium with solid BaSO4 willcause A. no change in the [Ba2+] in solution. B. more BaSO4 to dissolve C. precipitation of more BaSO4 D. an increase in the Ksp of BaSO4 BaSO4(s) Ksp @ 25°C = 1.5 x10-9 Please EXPLAIN youranswer. Please EXPLAIN youranswer.

Explanation / Answer

C) precipitation of more BaSO4 If you add more Na2SO4, the SO42- concentrationincreases, so the system maintains equilibrium by reducing theBa2+ and SO42- concentration. This makes surethe product of [Ba2+] and [SO42-] remainconstant.

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