At 280°C, the Vapor Pressure of Acetonitrile, CH₃CN, Is 102

Multiple Choice

At 28.0°C, the vapor pressure of acetonitrile, CH₃CN, is 102.0 torr while that of acetone, C₃H₆O, is 228.9 torr, and for CS₂ the value is 378.7 torr. A three-component solution is made by adding 0.300 moles of CH₃CN and 0.400 moles of C₃H₆O to 0.350 moles of CS₂. The mixture behaves as an ideal mixture. What is the vapor pressure of the solution?Hint: Organizing the given information into moles and mole fraction of each component will help in solving this problem.

A) 203 torr
B) 385 torr
C) 262 torr
D) 275 torr
E) 610 torr