1. General

Make sure that you work on your final version of the report for the epoxidation project. If you have any questions, please stop by in my office asap. The final version of the paper is due on Wednesday November 10, 2004 at 5 pm. Late papers will receive a 10% deduction per day. Make also sure that you don't forget to submit the electronic version online at www.turnitin.com (CourseID: 1170002, Password: Chem30CL, (case sensitive!)).

2. Experiment

During the second part, make sure that you allow the mixture to cool first before you extract it with ether (Hint: You can use an ice bath to speed up the cooling process!). A significant pressure will build up in the separatory funnel if the solution is extracted with diethyl ether while warm.

Try to avoid the use of an excessive amount of drying agent and don't forget to remove it prior to the distillation! Why?

The setup for the distillation should look like below.

The distillation setup consists of a flask (containing the solution), a three-way adapter, a water condenser, a vacuum adapter and a round-bottom flask to collect the liquid that condenses. The water supply (inlet) is connected on the bottom (lower) end, while the outlet goes either back to the sink or to the inlet of another condenser. Make sure that you have an opening at the end of your setup to release the pressure that will build up when you start to heat. Before you start, let the TA check on the setup.