benzene and toluene form a nearly ideal solution. At 80*C, the vapor pressure of pure benzene (MW=78.1) is 753 torr and the vapor pressure of pure toluene (MW 92.1) is 290 torr. Consider a solution of 30% toluene and 70% benzene by mass.  a) calculate the partial pressure of each vapor component that would be in equilibrium with the solution at 80*C. b) at what atmospheric pressure will this solution boil at 80*C? c) what will be the composition of the liquid that condenses when the vapor is cooled?

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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.