Question

Match the effect of addition of 1M NaOH to 100 mL 1M $C{H}_{3}COOH$ (in Column I) with pH(Column II).

Answer 1

(A) When 25 mL of 1M NaOH are addd to 100 mL 1M $C{H}_{3}COOH$ , the pH of the resulting solution is given by the expression $pH=p{K}_a-log3$.
(B) When 50 mL of 1M NaOH are addd to 100 mL 1M $C{H}_{3}COOH$ , the pH of the resulting solution is given by the expression $pH=p{K}_a$.
(C) When 75 mL of 1M NaOH are addd to 100 mL 1M $C{H}_{3}COOH$ , the pH of the resulting solution is given by the expression $pH=p{K}_a+log3$.
(D) When 100 mL of 1M NaOH are addd to 100 mL 1M $C{H}_{3}COOH$ , the pH of the resulting solution is given by the expression $pH=\frac{1}{2}[p{K}_w+p{K}_a-log2]$.