18. Aqueous Equilibrium
Complex Ions: Formation Constant
17PRACTICE PROBLEM
Cadmium(II) hydroxide, Cd(OH)2, is a sparingly soluble salt with a very small solubility product: Ksp = 2.5×10–14.
Cd(OH)2 reacts with ammonia (NH3) to form the following complex:
Cd(OH)2(s) + 6 NH3(aq) ⇌ [Cu(NH3)6]2+(aq) + 2 OH-(aq) ; Keq = 6.5×10–9
Calculate the value of formation constant Kf for [Cd(NH3)6]2+.
Cadmium(II) hydroxide, Cd(OH)2, is a sparingly soluble salt with a very small solubility product: Ksp = 2.5×10–14.
Cd(OH)2 reacts with ammonia (NH3) to form the following complex:
Cd(OH)2(s) + 6 NH3(aq) ⇌ [Cu(NH3)6]2+(aq) + 2 OH-(aq) ; Keq = 6.5×10–9
Calculate the value of formation constant Kf for [Cd(NH3)6]2+.