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Quiz 1. Find the concentration of Cu + in equilibrium with CuBr (s) and 0.050 M Br - . The K sp for CuBr is 5x10 -9 . Show your work. A. 0.050 M B. 5 x 10 -8 M C. 5 x 10 -9 M D. 1 x 10 -7 M

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Quiz

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  1. Quiz 1. Find the concentration of Cu+ in equilibrium with CuBr(s) and 0.050 M Br-. The Ksp for CuBr is 5x10-9. Show your work. A. 0.050 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 1.5x10-5. Show your work. A. 7.7 x 10-2 M B. 6.0 x 10-3 M C. 0.0167 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 D. none of the above

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