Question

Using activities, calculate the pH\mathrm{pH} of a solution containing 0.0100.010 M\mathrm{M} NaOH\mathrm{NaOH} plus 0.01200.0120 M\mathrm{M} LiNO3\mathrm{LiNO}_3. What would be the pH\mathrm{pH} if you neglected activities?

Solution

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Answered 1 year ago
Answered 1 year ago
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NaOH is a basic solution and what we can solve is the pOH. let's use the relationship between pH and pOH.

pH=14pOH\begin{align*} pH=14-pOH \end{align*}

Therefore, our working formula is:

pH=14+log[OH]γOH\begin{align*} pH=14+log[OH^-]\gamma_{OH^-} \end{align*}

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