CProcedurentent
1. Open two tea bags. Weigh the total contents and record this weight. Place the tea back into the bags and staple the bags shut.
2. Place the tea bags into the bottom of a clean, but not necessarily dry, 150 ml beaker. Add 30 ml of deionized water and 2.0 g of anhydrous sodium carbonate. Place the beaker on a wire gauze supported by a ring on a ring stand. Place a watch glass on top of the beaker. Gently boil the contents of the beaker for 10 minutes using a micro burner.
3. Decant the hot liquid into a 50 ml Erlenmeyer flask. Add 20 ml of deionized water to the beaker and again bring the contents to a boil. Again decant the liquid in the beaker into the 50 ml Erlenmeyer flask. Press the tea bags with a clean cork to express as much liquid as possible and transfer this liquid to the 50 ml Erlenmeyer flask also. Cool the tea extract to room temperature.
4. Transfer the tea extract from the 50 ml Erlenmeyer flask to a 125 ml separatory funnel that is supported by a ring on a ring stand.