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posted by maree on Wednesday, February 1, 2012 at 12:05am.
If the pH of a solution is 9, what are the hydrogen ion and hydroxide ion concentrations?
pH = -log(H^+) 9 = -log(H^+). Solve for (H^+). Then for OH^-. (H^+)(OH^-) = Kw = 1E-14
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