A saturated aqueous solution of sparingly soluble salt has the vapour pressure 0.08…

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Problem

A saturated aqueous solution of sparingly soluble salt

\text{AB}_3

has the vapour pressure 0.08 mm lesser than the vapour pressure 17.33 mm of solvent at

25^\circ\text{C}

. The solubility product of

\text{AB}_3

is : (1)

1.087 \times 10^{-2}

(2)

1.48 \times 10^{-4}

(3)

5.35 \times 10^{-5}

(4)

4.56 \times 10^{-4}