Solid copper (II) acetate is slowly added to 50.0 mL of a 0.0631 M ammonium sulfide solution. The concentration of copper(II) ion required to just initiate precipitation is ______ M. (Assume that Ksp (CuS) = 7.9 × 10^-37 .) The Solubility Product Constant for iron(II) hydroxide is 7.9 × 10^-15 Solid potassium hydroxide is slowly added to 125 mL of a 0.0509 M iron(II) nitrate solution. The concentration of hydroxide ion required to just initiate precipitation is ________ M.

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Chapter17: Solubility And Complex-ion Equilibria
Section: Chapter Questions
Problem 17.105QP: A 1.0-L solution that is 4.2 M in ammonia is mixed with 26.7 g of ammonium chloride. a What is the...
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Solid copper (II) acetate is slowly added to 50.0 mL of a 0.0631 M ammonium sulfide solution. The concentration of copper(II) ion required to just initiate precipitation is ______ M. (Assume that Ksp (CuS) = 7.9 × 10^-37 .) The Solubility Product Constant for iron(II) hydroxide is 7.9 × 10^-15 Solid potassium hydroxide is slowly added to 125 mL of a 0.0509 M iron(II) nitrate solution. The concentration of hydroxide ion required to just initiate precipitation is ________ M.
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