Answer:
1) Place the tea leaves in a 125-ml Erlenmeyer flask.
2)Add 20 ml dichloromethane and 10 ml 0.2 M NaOH.
3) Seal the flask and gently swirl it for 5-10 minutes to allow the solvent mixture to penetrate the leaves.
Explanation:
Caffeine dissolves in the solvent, while most of the other compounds in the leaves do not.
