Silver chromate, Ag₂CrO₄, is a red solid that dissolves only slightly in water: Ksp = 1.1 × 10⁻¹² at 298 K. What is its molar solubility at 298 K in a 0.010 mol L⁻¹ solution of potassium chromate, K₂CrO₄?

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Silver chromate, $\text{Ag}_2\text{CrO}_4$ , is a red solid that dissolves only slightly in water: $K_{sp} = 1.1 \times 10^{-12}$ at $298\ \text{K}$ . What is its molar solubility at $298\ \text{K}$ in a $0.010\ \text{mol L}^{-1}$ solution of potassium chromate, $\text{K}_2\text{CrO}_4$ ?

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← A weak monobasic acid HA has Ka = 2.5 × 10⁻³ at 298 K. What percentage of the acid is ionised in a 0.050 mol L⁻¹ solution of HA at 298 K? Do not assume that the degree of ionisation is small compared with 1.For N₂O₄(g) ⇌ 2 NO₂(g), Kp = 0.15 bar at 298 K. An equilibrium mixture of the two gases in a cylinder has a total pressure of 1.00 bar. The piston is pushed in until the volume is halved, and the temperature is brought back to 298 K. What is the partial pressure of NO₂ once equilibrium is restored? →

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