The solubility product of Cu(OH) 2 is 4.8 x 10 -20 . Calculate the value of pCu 2+ , or -log[Cu 2+ ], in an aqueous solution of NaOH which has a pH…

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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 12.63 and is saturated in Cu(OH)2.  

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 2.90 g of CuCl2 in 1.000 L of a solution 0.850 M in NaCN. The addition of CuCl2 does not alter the volume (the final volume is still 1.000 L).

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