For preparing a buffer solution of ph 6

Asked by admin @ 29/08/2021 in Chemistry viewed by 314 People

For preparing a buffer solution of ph 6 by mixing sodium acetate and acetic acid the ratio of concentrations of salt and acid should be

Answered by admin @ 29/08/2021

Answer:

10:1

Explanation:

pH= pKa + log ([salt]/[acid])

pH= pKa+ log ([salt]/[acid])

$6 = - log({10}^{ - 5} ) + log \times \frac{(salt)}{(acid)}$

6=5+log ([salt]/[acid])

log ([salt]/[acid]) = 1

[salt]/[acid] = 10

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