asporchap3pysser asporchap3pysser

13-05-2016
Chemistry

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certain solution has [OH-] = 4 x 10-3. Calculate the concentration of [H3O+] and the pH of the solution

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Willchemistry Willchemistry

16-05-2016

Kw = 1 x 10⁻¹⁴

Kw = [ H₃O⁺] [ OH⁻]

1 x 10⁻¹⁴ = [ H₃O⁺] * 4 x 10⁻³

[H₃O⁺] = 1 x 10⁻¹⁴ / 4 x 10⁻³

[H₃O⁺] = 2.5 x 10⁻¹² M

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