Question

At a given temperature, you have a mixture of benzene (vapour pressure of pure benzene = 745 torr) and toluene (vapour pressure of pure toluene = 290 torr). The mole fraction of benzene in solution is 0.36. Assuming ideal behavior, calculate the mole fraction of toluene in the solution.

Answer 1

The mole fraction of toluene in a benzene-toluene solution is 0.64, calculated by subtracting the given mole fraction of benzene (0.36) from 1, since the sum of mole fractions in a solution must equal 1.

Step-by-step explanation:

To calculate the mole fraction of toluene in a benzene-toluene solution, we can use the fact that the sum of the mole fractions of all the components in a solution equals 1.

Since the mole fraction of benzene is given as 0.36, the mole fraction of toluene can be found by subtracting the mole fraction of benzene from 1:

Mole fraction of toluene = 1 - Mole fraction of benzene

Mole fraction of toluene = 1 - 0.36

Mole fraction of toluene = 0.64