1. Tardigrade
  2. Question
  3. Chemistry
  4. The pH of a dilute solution of acetic acid was found to be 4.3 . The addition of a small crystal of sodium acetate will cause pH to:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The $pH$ of a dilute solution of acetic acid was found to be $4.3 .$ The addition of a small crystal of sodium acetate will cause $pH$ to:

Equilibrium

Solution:

$CH _{3} COONa$ being strong electrolyte ionizes into $CH _{3} COO ^{-}$ and $Na ^{+}$ ions and it suppresses the ionization of $CH _{3} COOH$

$\left( CHCOOH \rightleftharpoons CH _{3} COO ^{-}+ H ^{+}\right)$

thereby decreasing the $H ^{+}$ ion concentration. This could increase $pH$ to beyond 4.3