The stoichiometry and solubility product of a salt with the solubility curve given below is, respectively :

Engineering

Chemistry

Solubility Equilibria

Question

XY₂, 4 × 10^–9 M³

X₂Y, 2 × 10^–9 M³

XY, 2 × 10^–6 M³

XY₂, 1 × 10^–9 M³

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${XY}_{2} (s) \to_{}^{} \underset{10^{- 3}}{X^{+} (aq)} + \underset{2 \times 10^{- 3}}{2 Y^{-} (aq)}$

K_sp = [X⁺] [Y^–]²

or, K_sp = 10^–3 × (2 × 10^–3)²

or, K_sp = 4 × 10^–9 M³