Hydrogen pop test

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

Equipment: A test tube, a boiling tube, Busen Burner, wooden splint, a bottle of acid, a piece of metal, safety glasses.

Method:

1. Light your bunsen burner

2. Add a sample of metal to your test tube. Add 3 mls of acid

3. Carefully add 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 is 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.

Discussion: The flame with the hydrogen gas made the gas explode into a loud pop followed by smoke. When we have collected the hydrogen gas the metal and the acid heated up and the acid started to boil producing the hydrogen gas.

Conclusion: This proved that hydrogen gas is produced from metal reacting with acid as the hydrogen when met with fire make a loud pop. This shows us that we got hydrogen gas from burning the metal in the acid.