Twenty-five millilitres of 0.100 M acetic acid ( ) are titrated with 0.100 M NaOH

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

Twenty-five millilitres of 0.100 M acetic acid (

pK_a = 4.74

) are titrated with 0.100 M NaOH. What is the pH after 15.0 mL of the base have been added? (a) 5.44 (b) 4.92 (c) 8.96 (d) 4.74