MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryIonic equilibriumSalt Hydrolysis

The solubility product of barium sulphate is 1.5 × 10–9 at 18ºC. Its solubility in water at 18ºC is

A.1.5 × 10–9mol L–1

B.1.5 × 10–5mol L–1

C.3.9 × 10–9 M

D.3.9 × 10–5mol L–1.✓ Correct

Explanation

The solubility can be found as- Let concentration of mercury and sulphate ions will be- x 2 2 4 4 2 2 sp 4 9 10 5 1 BaSO Ba SO K [Ba ][SO ] 1.5 10 [ ][ ] 15 10 3.9 10 molL x x x x x x x

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