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Question 1   : The solubility product, Ksp, of Cd3(PO4)2 is 2.5 x 10-33. What is the...

Question 1   :
The solubility product, Ksp, of Cd3(PO4)2 is 2.5 x 10-33. What is the solubility (in g/L) of Cd3(PO4)2 in pure water?

Question 2   :
The solubility product of Cu(OH)2 is 4.8 x 10-20. Calculate the value of pCu2+, or -log[Cu2+], in an aqueous solution of NaOH which has a pH of 12.89 and is saturated in Cu(OH)2.

Question 3   :
The equilibrium constant for the formation of Cu(CN)42- is 2.0 x 1030. Calculate the value of pCu2+, or -log[Cu2+], if we were to dissolve 2.43 g of CuCl2 in 1.000 L of a solution 0.818 M in NaCN. The addition of CuCl2 does not alter the volume (the final volume is still 1.000 L).

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