In an aqueous solution, [OH⁻] is 2.0 × 10⁻⁶ M. What is [H⁺]? A) 5.0 × 10⁻⁹ M B) 1.0 × 10⁻⁷ M C) 2.0 × 10⁻⁶ M D) 1.0 × 10⁸ M

Question

Quizplus · Accepted Answer

The concentration of H+ can be found using the water dissociation constant (Kw = 1.0 × 10^-14 at 25°C). Since [OH^-] = 2.0 × 10^-6 M, [H+] = Kw / [OH^-] = (1.0 × 10^-14) / (2.0 × 10^-6) = 5.0 × 10^-9 M.

In an Aqueous Solution, [OH−] Is 2

In an Aqueous Solution, [OH⁻] Is 2