Aim: To carry out a test for the presence of oxygen gas.
Equipment: A pea-sized amount of manganese dioxide, boiling tube, bottle of hydrogen peroxide, safety glasses, wooden splint, Bunsen burner and a test tube rack.
Method:
1. Light your Bunsen burner.
2. Add the manganese dioxide to the boiling tube and place it in your test tube rack.
3. Add 2ml of hydrogen peroxide.
4. Light a splint and let it burn for a while.
5. Blow the splint out and insert the glowing embers into the mouth of the boiling tube.
Observation: When we inserted the splint embers into the boiling tube it re-light the splint. It re-light because there was oxygen being produced by hydrogen peroxide and manganese peroxide.
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