Question

As you saw in Part B, the vapor above the cyclohexane-acetone solution is composed of both cyclohexane vapor and acetone vapor. What mole fraction of the vapor above the solution, Xcy(vapor)Xcy(vapor), is cyclohexane?

Answer 1

Answer:

The mole fraction of a gas is linked to its partial pressure in the mixture.

Cyclohexane, in gaseous form has partial pressure of 97.6 torr (0.355) = 34.6 torr.

Hence the mole fraction of cyclohexane = 34.6 / 183 = 0.189

Explanation: