MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryIonic equilibriumSalt Hydrolysis

The solubility of BaSO₄ in water is 2.33 × 10–3g L–1.Its solubility product will be (molecular weight of BaSO₄ = 223)

A.1 × 10–5

B.1 × 10–10✓ Correct

C.1 × 10–15

D.1 × 10–20

Explanation

The solubility product can be found as- Concentration of barium and sulphate ions will be- Given weight/ molecular weight. IONIC EQUILIBRIUM 48 3 5 2.33 10 / 223 1.0 10 x x 2 2 4 4 2 2 sp 4 5 5 sp 10 sp BaSO Ba SO K [Ba ][SO ] K [1.0 10 ][1.0 10 ] K 1 10 x x x

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