At 20 °C, the vapor pressure of benzene (C6H6) is 75 torr,and that of toluene (C7H8) is 22 torr. Assume that benzeneand toluene form an ideal solution. (a) What is thecomposition in mole fraction of a solution that has a vaporpressure of 35 torr at 20 °C? (b) What is the mole fractionof benzene in the vapor above the solution describedin part (a)?

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Q: Assuming benzene and toluene form ideal solution, what is the mole fraction of toluene in a solution…

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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.