Chapter 7, Problem 7.9E

For a solution of ${\text{H}}_{\text{2}}\text{O}$ and ${\text{CH}}_3\text{OH}$ in which $x_{{\text{H}}_{\text{2}}\text{O}}=0.35$, what are the mole fractions of ${\text{H}}_{\text{2}}\text{O}$ and ${\text{CH}}_3\text{OH}$ in the vapor phase? Use conditions and data from exercise 7.8.