Calculate the hydronium ion concentration in an aqueous solution that contains 2.50 × 10^-6 mol L^-1in hydroxide ion. A)4.00 × 10^-7 mol L^-1 B)4.00 × 10^-8 mol L^-1 C)4.00 × 10^-9 mol L^-1 D)5.00 × 10^-9 mol L^-1

Question

Quizplus · Accepted Answer

The product of the concentrations of hydronium and hydroxide ions in water is 1.0 × 10^-14 at 25°C. Using [H₃O⁺][OH⁻] = 1.0 × 10^-14, we find [H₃O⁺] = 1.0 × 10^-14 / 2.50 × 10^-6 = 4.00 × 10^-9 mol L^-1.

Calculate the Hydronium Ion Concentration in an Aqueous Solution That