Practice: If your equilibrium constant K is equal to the product of Ksp and Kf, find the solubility of AgCl in 2.0 M NH3. Ksp of AgCl = 1.77 × 10−10; Kf of Ag(NH3)2+ = 1.7 × 107.
Complex Ion is a structure containing a metal cation that acts as a Lewis Acid.
Concept #1: Complex Ion and Ligand
Formation Constant (Kf): a ratio of product to reactant concentrations.
Example #1: The formation of the complex ion created from the combining of silver ion and cyanide ion is given below:
Ag+ (aq) + 2 CN– (aq) ⇌ Ag(CN)2– (aq) Kf = 1.0 x 1021
If 100.0 mL of 0.0120 M AgClO4 is mixed with 220.0 mL of 0.25 M CN–, what is the [Ag+] once equilibrium has been reached?
Practice: If your equilibrium constant K is equal to the product of Ksp and Kf, find the solubility of AgCl in 2.0 M NH3. Ksp of AgCl = 1.77 × 10−10; Kf of Ag(NH3)2+ = 1.7 × 107.
Practice: A solution is composed of 3.20 × 10−4 M Co(NO3)3 mixed with 0.200 M NH3. Determine the [Co3+] that remains once the solution reaches equilibrium in the formation of Co(NH3)63+.
