Question

Solutions of sodium hydroxide and acetic acid are mixed by the reaction: $NaOH+C{H}_{3}COOH⟶C{H}_{3}COONa+H_{2}O$

Acetic acid is a weak acid. If equal volumes of equal molar solutions are mixed, the pH of the solution will be:

• A. more than 7
• B. less than 7
• C. equal to 7
• D. none of the above

Answer 1

The correct option is A more than 7

Sodium acetate which is formed in the reaction is basic in nature so the $pH$ of this salt is greater than 7 and it is formed by the reaction of strong base $NaOH$ with a weak acid like acetic acid. The sodium salt of the ester obtained is alkaline in nature.