Materials:

• Bunsen Burner
• Spatula
• Test tube rack
• Boiling tube
• Test tube holder
• Funnel
• Flask
• Container P with powder

1. Take a clean test tube and put a spatula-full of the black powder labeled P into it.

2. Put the test tube in the rack and quarter fill the tube with dilute acid from the bottle labeled Q.

3. Light the Bunsen Burner and adjust the flame so that it is suitable for heating the test tube and its contents.

4. Heat the mixture in your test tube gently until it is boiling. Put it back in the rack to cool down for a minute.

5. Adjust the Bunsen Burner until you have a yellow flame.

6. Filter the liquid from your test tube into the flask provided.

7. Put your dirty apparatus into the container provided.