A 250 ML Sample of 0 $K _ { a }$

Multiple Choice

A 25.0 mL sample of 0.150 mol L^-1 acetic acid is titrated with a 0.150 mol L^-1 NaOH solution.What is the pH after 26.0 mL of base is added? The $K _ { a }$ of acetic acid is 1.8 × 10^-5.

A) 2.54
B) 11.47
C) 7.00
D) 4.74
E) 10.18