CHM 1321 Study Guide - Quiz Guide: Benzene, Fractionating Column, Graduated Cylinder

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 1321
• Professor: William Ogilvie

Document Summary

In this experiment we use two different methods of distillation that are commonly used to separate two compounds in a mixture: simple distillation and fractional distillation. Using a simple distillation the mixture is placed in a distillation flask and is then heated up. What happens first is that the compound in the mixture with the lowest boiling point will change its phase from liquid to vapor. The vapor produced migrates up and enters the condenser tube, and with the help of the cold water flowing will change its phase back to liquid phase and will slowly drip into the receiving flask. This way, we are separating the two compounds based on their different boiling points. Fractional distillation is exactly the same concept as the simple distillation. However the difference is that the gas does not migrate up a glass normal glass column into the condenser but through a fractionating column that is added.