At 25°C a solution has a hydroxide-ion concentration of 8.22 × 10^-5 M.What is its hydronium-ion concentration? A)8.22 × 10^-19 M B)1.00 × 10^-7 M C)1.00 × 10^-14 M D)8.22 × 10^-5 M E)1.22 × 10^-10 M

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Quizplus · Accepted Answer

The hydronium-ion concentration can be found using the ion product of water, Kw = [H₃O⁺][OH⁻] = 1.00 × 10^-14 M^2 at 25°C. Given [OH⁻] = 8.22 × 10^-5 M, solving for [H₃O⁺] gives [H₃O⁺] = Kw / [OH⁻] = (1.00 × 10^-14) / (8.22 × 10^-5) = 1.22 × 10^-10 M.

At 25°C a Solution Has a Hydroxide-Ion Concentration of 8