Question 256875

(b) Consider the titration of 0.10 mol dm’3 CHICOOH (K,:1.8×10-5 and

K,: 1.0×10-ra at 25 oC) with 25.0 cm3 of 0.10 mol dm-3 NaOH. (for{utt credit, all

relevant equations must be shown)

i Calculate the main points {at leastfour points) needed to plot the titration curve.

ii Sketch the expected titration curye highlighting the points you determined in (i).


iii If a student obtained an end point of 24.80 cm3 for the above titration, d#rmine

the titration enor.

(50 marks)