Question

A storage battery contains a Solution of H2SO4 38% by weight . what will be the van't Hoff factor if the ∆Tf(experiment) in 29.08 [ Given Kf = 1.86mol-¹Kg] ​

Answer 1

Solution :- Given = H2SO4 38% by weight , ∆Tf = 29.08 ,Kf = 1.86 mol-¹kg

∆Tf = i×kf×m
29.08 = i × 1.86 ×38×1000/98× 62

i = 2.5 Answer ✔