Ionic EquilibriumHard

Question

In an attempted determination of the solubility product constant of Tl2S, the solubility of this compound in pure CO2 free water was determined as 2.0 × 10–6 M. Assume that the dissolved sulphide hydrolyses almost completely to HS– and that the further hydrolysis to H2S can be neglected, what is the computed Ksp?

For H2S, Ka1 = 1.4 × 10−7, Ka2 = 1.0 × 10−14

Options

A.6.4 × 10−23
B.1.6 × 10−23
C.3.2 × 10−17
D.3.2 × 10−24

Solution

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