Within what pH range can Cu2+ be separated from Fe2+ if their
concentration is both 0.1M...
Within what pH range can Cu2+ be separated from Fe2+ if their
concentration is both 0.1M and H2S concentration is 0.01M? Show all
calculations to support your answer. (KCuS = 1.2x10^-36; KFeS =
4.9x10^-18; KH2S = 1.3x10^-20)
(a) What happens to the concentration of
Cadmium when the pH of a solution increases from 7 to 12? Calculate
the concentration of cadmium in each case. Assume that the
solubility of cadmium is controlled only by hydroxide. The
solubility product constant is as follows:
Cd(OH)2 (s) <--> Cd2+ +
2OH- Ksp= 2x10-14
The national groundwater drinking water standard for cadmium is
0.005 mg/L. (b) What pH will ensure that any
Cadmium in excess of 0.005 mg/L will precipitate out...