Question

If acetic acid is mixed with sodium acetate then $H^{+}$ ion concentration will be

• A. increased
• B. decreased
• C. remains unchanged
• D. pH decreased

Answer 1

Answer: (B)

$C{H}_{3}COOH\rightleftharpoons C{H}_{3}CO{O}^{-}+H^{+}$
On adding $C{H}_{3}COONa,$ due to common ion, $[H^{+}]$ decreases.