1. Tardigrade
  2. Question
  3. Chemistry
  4. Calculate the pH of CH3OONa at 25o if the concentration of CH3COONa is 0.01M . (Given pKa of acetic acid is 4.74 ).

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Calculate the $pH$ of $CH_{3}OONa$ at $25^{o}$ if the concentration of $CH_{3}COONa$ is $0.01M$ . (Given $pK_{a}$ of acetic acid is $4.74$ ).

NTA AbhyasNTA Abhyas 2020Equilibrium

Solution:

$\mathrm{pH}=7+\frac{1}{2} \mathrm{pka}+\frac{1}{2} \operatorname{logc}$
$=7+\frac{1}{2} \times 4.74+\frac{1}{2} \log \left(10^{-2}\right) $
$ \therefore \mathrm{pH}=8.37$