Asked by Ele
I need to calculate the amount of grams of Na-benzoate in a Na-benzoate buffer (water based) with a pH = 4.2 at 25'C?
Answers
Answered by
DrBob222
Use the Henderson-Hasselbalch equation.
pH = pKa + log [(base)/(acid)]
(base) = concn of the salt.
(acid) = concn benzoic acid.
pH = pKa + log [(base)/(acid)]
(base) = concn of the salt.
(acid) = concn benzoic acid.
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