Given a solution at 25°C, the [H+] is 3.5 * 10-6 M. Determine the [OH-].

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Chemistry

Ricardo Case

1 August, 13:47

Given a solution at 25°C, the [H+] is 3.5 * 10-6 M. Determine the [OH-].

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Diana Becker · Answer 1

The H + concentration is related to the pH of the solution through the formula pH = - log (H+) while t he OH - concentration is related to the pH of the solution through the formula pOH = - log (OH-). The product of H + and OH - concentration is equal to Kw, 1 x 10 - 14. hence OH - concentration is equal to 1 x 10 - 14 / 3.5 * 10-6 equal to 2.86 x10^-9 M