7. Dried the combined dicloromethane layer with Na2SO4.
8. Decant dichloromethane into 25 mL beaker.
9. Place the beaker in hot plate and slowly heat the beaker to evaporate dichloromethane until it remain 5 mL of dichloromethane.
10. Allow the beaker to cool and crystals of caffeine will form in the solution.
11. Set the aspirator pump apparatus and fil Caffeine using Buchner funnel.
12. Weight the dry Caffeine and calculate weight percent of Caffeine in Tea leaves.