How much sodium acetate should be added to 0.1 M solution of $CH_{3}COOH\$to give a solution of pH $= 5.5\ (pK_{a}$of $CH_{3}COOH = 4.5)$?

Question

Dr. Abubacker · Accepted Answer

(c)
We know that,
$pH = pK_{a} + \log\frac{\lbrack salt\rbrack}{\lbrack acid\rbrack}$
$5.5 = 4.5 + \log\frac{\lbrack salt\rbrack}{\lbrack 0.1\rbrack}$
$\lbrack salt\rbrack = 1.0\ M$

Q. How much sodium acetate should be added to 0.1 M solution of $CH_{3}COOH\$to give a solution of pH $= 5.5\ (pK_{a}$of $CH_{3}COOH = 4.5)$?

Explanation

Reviewed by Dr. Abubacker

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