A waste solution from a certain industrial process contains 0.05M Cu2+ ions. In order to collect Cu2+ from the solution for recycling, some OH- ions...

A waste solution from a certain industrial process contains 0.05M Cu2+ ions. In order to collect Cu2+ from the solution for recycling, some OH- ions are added to produce a precipitate of Cu(OH)2. OH ions are added until the concentration of OH- is 9x10^-6. M in solution. Calculate [Cu2+] remaining in the solution. What percent of Cu2+ has precipitated out> The Ksp for Cu(OH)2 is 1.6x10^-13