If the $\mathrm{p} K_a$ of acetic acid and $\mathrm{p} K_b$ of dimethylamine are 4.76 and 3.26 respectively, the $\mathrm{pH}$ of dimethyl ammonium acetate solution is

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Aicharya · Accepted Answer

$\begin{aligned} & 	ext { } \begin{aligned} \mathrm{pH}= & 7+\frac{1}{2}\left[\mathrm{p} K_a-\mathrm{p} K_bight] \ 	ext { Here, } \mathrm{p}_a & =4.76, \mathrm{p} K_b=3.26 \ & =7+\frac{1}{2}[4.76-3.26] \ & =7+\frac{1}{2}[1.50] \ & =7+0.75=7.75\end{aligned}\end{aligned}$ *

If the $\mathrm{p} K_a$ of acetic acid and $\mathrm{p} K_b$ of dimethylamine are 4.76 and 3.26 respectively,…

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