1. The problem statement, all variables and given/known data Write an overall net ionic equation and calculate K for the reaction where CuCl (Ksp = 1.9 x 10^-7) is dissolved by NaCN to from [Cu(CN)2]- Kf = 1.0 x 10^16). 2. Relevant equations 3. The attempt at a solution The net ionic equation I've come up with is: CuCl + Na(CN)2- --> Cu(CN)2- + NaCl The equilibrium equations to figure K that I came with are: CuCl --> Cu+ + Cl- 2CN- + Cu+ --> [Cu(CN)2]- Am I on the right track here, or am I completely off? How would I then determine K from this? How do I know when it's 1/Ksp or just Ksp?