Calculate x_C6H6 in a benzene–toluene liquid solution that is in equilibrium at 25 °C with a vapor phase that contains 62.0 mol % C₆H₆. (Use data from Exercise 51.)

Exercise 51

What are the partial and total vapor pressures of a solution obtained by mixing 35.8 g benzene, C₆H₆, and 56.7 g toluene, C₆H₅CH₃, at 25 °C? At 25 °C the vapor pressure of C₆H₆ = 95.1 mmHg; the vapor pressure of C₆H₅CH₃ = 28.4 mmHg.