1. Take a test tube rack with 1 boiling tube at each end of the rack and 4 test tubes.
2. Half fill the boiling tube at one end with sodium hydroxide.
3. half fill the boiling tube at the other end with hydrochloride
4. Fill each test tube with 5 drops of universal indicator
5. Using the pipettes you will add drops of acid or alkaline to the test tubes to make the colors red,orange,yellow,green and blue.
No comments:
Post a Comment