- To demonstrate a chemical reaction which produces energy in the form of light without
- Anhydrous sodium carbonate (Na2CO3)
- Luminol (3-aminophthalhydrazide) (C8H7O2N3)
- Sodium bicarbonate (NaHCO3)
- Ammonium carbonate monohydrate ((NH4)2CO3*H2O)
- Copper (II) sulfate pentahydrate (CuSO4*5H2O)
- 3% Hydrogen peroxide (H2O2)
- Spiral condenser or plastic tubing
- Clamp the spiral condenser to the ring stand. Attach a funnel at the top to pour the
solutions into, and place a flask at the bottom.
- Prepare solution A in a 500-mL flask:
- Add 250-mL of water to the flask.
- Dissolve 2.0g of anhydrous sodium carbonate.
- Add 0.1g of luminol and dissolve. (Luminol may take a long time to dissolve.)
- Add 12.0g of sodium bicarbonate.
- Add 0.25g of ammonium carbonate monohydrate.
- Add .2g of copper (II) sulfate pentahydrate.
- Stir until all the chemicals dissolve.
- Add water until the total volume of the solution is 500 mL.
- Prepare solution B in another 500-mL flask.
- Add 25 mL of 3% hydrogen peroxide.
- Add water until the total volume of the solution is 500 mL
- Pour solutions A and B simultaneously into the funnel, and dim the room lights. As the
solutions react, a blue glow results.
Data & Observations
- What happened when the two solutions were mixed together?