Difference of boiling point and freezing point of 0.2 m acetic acid prepared in benzene is 75.7°C; then, state the value of Van’t Hoff factor i ? (For benzene, Kb = 2.65 OC – kg – mol–1 , Kf = 5.12°C – kg – mol–1, Tb = 80°C, Tf = 5.5°C)
(a) 1.44
(b) 0.64
(c) 0.83
(d) 0.77