A solution contains 0.010 M each Cu(NO3)2 and Bi(NO3)3. An equal portion of 12 M NH3 is added to the solution. The initial concentration of the two metal ions is .0051 M, and 6.1 M for NH3, as the change in volume would dilute the molarity by half even before a reaction starts. The initial [OH-] is .01 M, and the equilibrium concentration of the Cu2+ ion is 3.5 x 10^-19 M, assuming the concentrations of NH3 and OH- are buffered and will not change from their original values.
What are the equilibrium concentrations of Bi3+ ion and Cu(NH3)4 2+ complex ion? (Assume again that the concentrations of NH3 and OH- are buffered and will not change from their original values)