Chapter 13, Problem 113E

Interpretation Introduction

Interpretation:

“Mole fraction and the vapor pressure of chloroform above the new solution.” should be identified.

Concept introduction:

a) The relation between partial pressure in vapor and pure vapor pressure is given by Raoult’s law, According to Raoult’s law

$\frac{{\text{P}}_{\text{s}}}{{\text{P}}_{\text{0}}}{\text{ = x}}_{\text{s}}$

where,

x_s = mole fraction of solvent

P₀ = vapor pressure of pure solvent

P_s = vapor pressure of solution

b) As mentioned in question if we have condensed the vapor then the mole fraction of chloroform in new solution will be equal to the mole fraction calculated for vapor in first solution.

c) Molar mass of CCl₄ is $\text{153}\text{.82 }\frac{\text{g}}{\text{mole}}$

d) Molar mass of CHCl₃ is $\text{119}\text{.38 }\frac{\text{g}}{\text{mole}}$

Given:

Temperature is 316 K

Vapor pressure of pure chloroform is 0.526 atm

Vapor pressure of pure carbon tetrachloride is 0.354 atm.