If the concentration of hydronium ion in water is 1 × 10^-6 M, the concentration of hydroxide ion is _____ and there is more _____ in the solution. A) 1 × 10^-8 M; hydroxide B) 1 × 10^-8 M; hydronium C) 1 × 10⁶ M; hydroxide D) 1 × 10⁶ M; hydronium

Question

Quizplus · Accepted Answer

The concentration of hydroxide ion can be found using the water ion product, Kw = [H₃O⁺][OH⁻] = 1 × 10^-14 M^2. Given [H₃O⁺] = 1 × 10^-6 M, solving for [OH⁻] gives 1 × 10^-8 M. Since the concentration of hydronium ions is higher than that of hydroxide ions, there is more hydronium in the solution.

If the Concentration of Hydronium Ion in Water Is 1