Calculate the hydronium ion concentration in an aqueous solution that contains 2.50 × 10^{- 6} M in hydroxide ion. A)4)00 × 10^{- 7} M B)4)00 × 10^{- 8} M C)4)00 × 10^{- 9} M D)5)00 × 10^{- 9} M

Question

Quizplus · Accepted Answer

The product of the concentrations of hydronium and hydroxide ions in water is always 1.0 × 10^-14 at 25°C. Therefore, [H3O+] = 1.0 × 10^-14 / [OH-] = 1.0 × 10^-14 / 2.50 × 10^-6 = 4.00 × 10^-9 M.

Calculate the Hydronium Ion Concentration in an Aqueous Solution That