Problem 3: The vapor pressures of pure benzene and toluene at 298 K are 95 torr and 30 torr, respectively. Sketch a vapor pressure versus composition diagram for an ideal solution of benzene and toluene. a. Use and label the mole fraction of toluene as the composition axis. b. Label the pressure axis (including units) and indicate numerical values of the vapor pressures for the pure liquids c. Plot and label the vapor presure of toluene d. Plot and label the vapor pressure of benzene e. Plot and label the total vapor pressure of the 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.