Question

Pergunakan tabel 1.3 untuk menentukan titik beku dan titik didih larutan 6,4 gram naftelana (C10H8)dalam 100 gram benzena (Ar,H =1,C=12)!!

Answer 1

Tf = Tf° - ∆Tf
∆Tf = Kf x m
= 5,07 x 6,4/128 x 1000/100
= 2,535
Tf = - 2,535

Tb = ∆Tb + Tb°
∆Tb = Kb x m
= 2,53 x 6,4/128 x 1000/100
= 1,265
Tb = 101,265