Question

A chemist has 250.0 mL of a bright blue (caused by Cu+2) aqueous solution that contains 21.16 g of CuCl2. He adds 12.0 g of finely ground silver to the blue solution and lets the solution sit covered overnight. When he returns he finds:

Answer 1

250.0 mL bright blue solution and ? g finely ground silver. There was no reaction between the Cu^2+ soln and the solid silver. Since the Ag was not in solution, there will not be a fast reaction between the Cl^- and Ag to form AgCl; however, with time, a small amount of AgCl (white ppt) will form). A ppt will form faster IF the solution contains something to dissolve the Ag metal.