At 25 C the vapor pressures of benzene (C6H6) and toluene (C7H8) are 93.4 and 26.9 torr, respectively. A solution made by mixing 35.0 g benzene and 65.0g of toluene is prepared. What is the vapor pressure of this solution? To solve for the vapor pressure of the solution, the mole fraction of each component is necessary, but first the moles of each component must be calculated. Calculate the moles of both benzene and toluene.

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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.