Benzene and toluene form an ideal solution. The vapor pressure of benzene at 55 °C is 400 mm Hg whil — Solutions Chemistry Question

Benzene and toluene form an ideal solution. The vapor pressure of benzene at 55 °C is 400 mm Hg while the vapor pressure of toluene at 55 °C is 130 mm Hg. What is the vapor pressure of a solution consisting of 0.5 mole fraction of benzene and 0.5 mole fraction of toluene at 55 °C?