Testing For Hydrogen Gas - Science

 AIM: To show that hydrogen gas is produced when a metal reacts with acid.

Equipment:
1. Test Tube
2. Boiling Tube
3. Bunsen Burner
4. Wooden splint
5. Bottle of acid
6. Piece of metal
7. Saftey Glasses

Method:
1. Light your bunsen burner
2. Add your sample of metal to your test tube. Add 3ml of acid
3. Carefully invert the boiling tube above the test tube containing the metal and acid.
4. Hold the test tubes together for a few minutes, allowing time for the inverted boiling tube to fill with gas.
5. When you think the tube if full, your lab partner should light a wooden splint.
6. Carefully, but quickly, tilt the boiling tube full of gas upwards and insert the burning splint into the mouth of the test tube.

Observation:
The tube with the gas in it made a POP sound when the burning splint was put into the mouth of the tube. It worked better when we waited for 1 minute and 20 seconds. The gas turned to smoke after the POP sound. We could tell that a chemical reaction was happening because when the metal hit the acid it started bubbling/ boiling. You could also tell when we added the splint because of the big POP sound.