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19-04-2022
Chemistry

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Determine the ph of a 0. 188 m nh3 solution at 25°c. The kb of nh3 is 1. 76 × 10-5.

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indrawboy indrawboy

19-04-2022

[tex]\tt [OH^-]=\sqrt{Kb.M}[/tex]

[OH⁻]=√1.76.10⁻⁵.0.188

[OH⁻]=1.81 x 10⁻³

pOH = 3 - log 1.81

pH = 11 + log 1.81

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