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If a solution contains 7.5 X 10-8M Cu+2 and 1.0 X 10-7 M Zn+2 will either...

If a solution contains 7.5 X 10-8M Cu+2 and 1.0 X 10-7 M Zn+2 will either metal precipitate as a hydroxide salt if the pH is 8.5? At what concentration of OH- will each metal precipitate?

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