At 28.0C, 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? 243 torr 203 torr 610 torr 262 torr 275 torr