Question

Tentukan titik didih dan titik beku larutan 6,4 gram naftalena dalam 100 gram benzena

Answer 1

Verified answer

Kf = 5.12 C/m, Kb = 2.53 C/m

Boiling point: 176.2°F (80.1°C)
Melting point: 41.9°F (5.5°C)

titik beku larutan,

To - T = (w/Mr)(1000/P) Kf

5.5 - T = (6.4/128.17)(1000/100) 5.12

T = 2.94 °C






titik didih larutan,

T - To = (w/Mr)(1000/P) Kb

T - 80.1 = (6.4/128.17)(1000/100) 2.53

T = 81.36°C

Semoga dapat membantu yaa !!