The pK_a of a weak acid,HA, is 4.80. The pK_b | vedclass

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(C) The salt $BA$ is formed from a weak acid $(HA)$ and a weak base $(BOH)$.In aqueous solution,the salt undergoes hydrolysis as follows:$BA + H_2O \r

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$7.01$

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(C) The salt $BA$ is formed from a weak acid $(HA)$ and a weak base $(BOH)$.In aqueous solution,the salt undergoes hydrolysis as follows:$BA + H_2O \rightleftharpoons BOH + HA$The $pH$ of a salt of a weak acid and a weak base is given by the formula:$pH = \frac{1}{2} pK_w + \frac{1}{2} pK_a - \frac{1}{2} pK_b$Given $pK_w = 14.00$,$pK_a = 4.80$,and $pK_b = 4.78$.Substituting these values into the formula:$pH = \frac{1}{2} (14.00 + 4.80 - 4.78)$$pH = \frac{1}{2} (14.02)$$pH = 7.01$

The $pK_a$ of a weak acid,$HA,$ is $4.80.$ The $pK_b$ of a weak base,$BOH,$ is $4.78.$ The $pH$ of an aqueous solution of the corresponding salt,$BA,$ will be

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