Question
Calculate the $\left[\mathrm{OH}^{-}\right]$ and the $\mathrm{pH}$ of a $0.024 \mathrm{M}$ methylamine solution; $K_{b}=4.2 \times 10^{-4}$.
Step 1
Step 1: We start by writing the equilibrium expression for the reaction of methylamine with water: \[CH_{3}NH_{2} + H_{2}O \rightleftharpoons CH_{3}NH_{3}^{+} + OH^{-}\] The $K_{b}$ expression for this reaction is: \[K_{b} = Show more…
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