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Calculate either [H3O ] or [OH–] for the solutions below at 25 C. [OH-]=1.83x10^-7 M [H3O+]=? M

Ramon Kelly

in Chemistry

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Caroline Campbell on April 10, 2018

The answer is: the concentration of hydronium ions is 5.5·10⁻⁸ M. the[OH⁻] = 1,83·10⁻⁷ M; the equilibrium concentration.The Kw (ionic product to the water) at 25°C is 1·10⁻1⁴ mol2/dm⁶ or 1·10⁻1⁴ M2. Kw = [H₃O⁺] · [OH⁻].[H₃O⁺] = Kw ÷ [OH⁻].[H₃O⁺] = 1·10⁻1⁴ M2 ÷ 1,83·10⁻⁷ M.[H₃O⁺] = 5,5·10⁻⁸ M.


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