Question

8. On addition of NaOH to CH,COOH solution, 60%
of the acid is neutralised. If pk of CH,COOH
is 4.7 then the pH of the resulting solution is :-
(1) More than 4.7 but less than 5.0
(2) Less than 4.7 but more than 4.0
(3) More than 5.0
(4) Remains unchanged​

Answer 1

Answer:

The composition of the resulting solution is 60% CH3COONa and 40% CH3COOH. CH3COOH is a weak acid and CH3COONa is a salt of weak acid and strong base, so the resulting solution is an acidic buffer solution.