The vapor pressure of pure benzene is 74.7 Torr. The vapor pressure of pure toluene is 22.3 Torr. The two liquids form an ideal solution at all compositions. Ideal means that they obey Raoult’s Law. What is the benzene mole fraction in a solution which has a total vapor pressure of 46.0 Torr?

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.