Aim: to produce pure distilled water that can be used in the laboratory

Apparatus:

• Seawater
• Distillation flask
• Boiling stones
• Bunsen burner
• Water cooled condenser
• Glass beaker

Method:

1. Add sea water and the boiling stones in the distillation flask
2. Connect the flask to the water cooled condenser. Turn on a steady stream of cold water from the tap through the condenser.
3. The temperature of the vapour is taken down.
4. The distilled water is now collected in a beaker.

Diagram:

par Claude Foumtum