Skip to main content
What will happen to the solubility of Fe(OH)3 when KCN(aq) is added to the solution? Provide the balanced net ionic equation for the dissolution process. [Hint: Refer to complex ions formations]
What is the molar solubility of AgCl in pure water and in 0.20 M Na2S2O3 solution? Use the following values: Ksp AgCl = 1.8×10–10 and Kf [Ag(S2O3)2]3– = 4.7×1013.
The amount of Hg(OH)2 (Ksp = 3.1×10–26) dissolved in a solution can be increased by the formation of the [HgCl4]2– complex ion (Kf = 1.1×1016). What is the initial amount of KCl in molarity needed to increase the molar solubility of solid Hg(OH)2 to 1.2×10–3 mol/L when solid Hg(OH)2 is added to a KCl solution?
Determine the equilibrium constant for the reaction with their Ksp and Kf values
CuS (s) + 6 CN- (aq) ⇌ Cu(CN)42- (aq) + S2- (aq) (Ksp = 2x10-47, Kf = 1x1025)
Determine the concentration of Ni2+ that remains when a solution of 1.3 × 10-3 M Ni(NO3)2 and 0.173 M NH3 reaches equilibrium.
Kf (Ni(NH3)62+) = 1.2 × 109
Which one of following statements about copper(I) iodide (CuI, Ksp = 1.10×10–12) and Copper(II) carbonate (CuCO3, Ksp = 1.40×10–10) is incorrect.
