1. Quiz
1. Find the concentration of Cu+ in equilibrium with CuBr(s) and M Br-. The Ksp for CuBr is 5x Show your work.
A M
B. 5 x 10-8 M
C. 5 x 10-9 M
D. 1 x 10-7 M
2. A solution contains 2.5 x 10-3 M SO42- ion when Ag2SO4(s) begins to precipitate. What is the concentration of Ag+? The Ksp for Ag2SO4 is 1.5x Show your work.
A x 10-2 M
B x 10-3 M
C M
D. 1.5x10-4 M

2. Quiz
3. The formation of complex ions causes the solubility of a slightly soluble solid to:
A. increase
B. decrease
C. stay the same
D. none of the above
4. The formation of complex ions has a larger effect on solubility as the concentration of a common ion:
A. increases
B. decreases
C. stays the same