Consider a Solution Containing Liquids a and B Where the Mole

Multiple Choice

Consider a solution containing liquids A and B where the mole fraction of B is 0.60.Assuming ideality,calculate the mole fraction of A in the vapor at equilibrium with this solution at 25°C.(The vapor pressures of pure liquid A and B at 25°C are 117.7 torr and 400.0 torr,respectively. )

A) 0.16
B) 196
C) 0.31
D) 3.40 $\times$ 10^-3
E) 4.90 $\times$ 10^-3