A 50.0-mL sample of 2.0 * 10-4 M CuNO3 is added to 50.0 mL of 4.0 M NaCN. Cu+ reacts with CN- to form the complex ion Cu(CN) 32-: 
Calculate the solubility of CuBr(s) (Ksp = 1.0 * 10-5) in 1.0 L of 1.0 M NaCN.
A) 0.33 mol/L
B) 1.0 * 10-6 mol/L
C) 1.0 *103 mol/L
D) 1.0 mol/L
E) none of these
Correct Answer:
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