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A solution contains 0.021 M Cl- and 0.017 M I -. A solution containing copper (I) ions is added to selectively precipitate one of the ions. At what concentration of copper (I) ion will a precipitate begin to form? What is the identity of the precipitate?
Ksp(CuCl) = 1.0 × 10 -6
Ksp(CuI) = 5.1 × 10 -12
A) 4.8 × 10-5 M, CuI
B) 3.0 × 10-10 M, CuCl
C) 4.8 × 10-5 M, CuCl
D) 3.0 × 10-10 M, CuI
E) No precipitate will form at any concentration of copper (I).
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