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12-03-2019
Chemistry

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what is the ph of a solution of base with a 0.051 M concentration of hydroxide ions

Respuesta :

superman1987 superman1987

22-03-2019

Answer:

12.7.

Explanation:

∵ pOH = - log[OH⁻].

[OH⁻] = 0.051 M.

∴ pOH = - log[OH⁻] = - log(0.051 M) = 1.29.

∵ pH + pOH = 14.

∴ pH = 14 - pOH = 14 - 1.292 = 12.7.

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