Hey bloggers
This week we are learning about acid
Aim: To make red cabbage pH indicator for use on different household chemicals
Red cabbage indicator experiment
Materials
1. Red cabbage
2. Beaker
3. Bunsen Burner
4. pipette
5. Sodium Hydroxide
6. Hydrochloric acid
7. Test tudes
8. Paper towels
9. Test tude rack
10. Water
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Steps
1. chop up the red cabbage into small pieces. Place in a beaker and cover with a small amount of water.
2. Bring the solution to the boil using a Bunsen Burner and then turn of the heat. Let it sit to cool down
3. pour the cabbage water through a paper towel into a beaker. The dark purple liquid in the jar is the pH indicator liquid.
4. Suck up the indicator into a pipette.
5. Use the cabbage indicator to test the acidity of the different households liquids by slowly putting a drop at a time into the test tude
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