Answer to Question #103673 in General Chemistry for Beverlie

Question

1. A solution is prepared by mixing 2.80 mol of acetone with 1.45 mol of cyclohexane at 30°C.
Calculate the Xacetone and Xcyclohexane in the vapor above the solution.
P°acetone = 229.5 torr and P°cyclohexane = 97.6 torr.
Xacetone in the vapor =
Xcyclohexane in the vapor =

Answer 1

X₁=P₁/(P₁+P₂)

X_acetone=229.5/(229.5+97.6)=0.70=70%

X_cyclohexane=97.6/(229.5+97.6)=0.3=30%