I want a project on this topic plzz
Subject- study of the decomposition of H2O2 by volume determination
This project introduction , theory , procedure, observation , calculation , conclusion
Answers
Okay so I'm not sure what exactly is required for the introduction or calculation parts so I'll omit those but if you give me the details, maybe I'll be able to help you further.
Test: The effect of sunlight on hydrogen peroxide
Theory: If hydrogen peroxide is exposed to sunlight or heat, it will decompose faster than if it is put in the refrigerator since UV light and temperature both catalyze the decomposition of it.
Procedure:
1. Into 2 test tubes, pour 10cm³ of hydrogen peroxide in each.
2. Connect each to a delivery tube and gas syringe individually.
3. Label one set-up 'A', and the other 'B'.
4. Place set-up 'A' in a sunlit area where it will receive direct sunlight from all sides.
5. Place set-up 'B' in an opaque black plastic bag in a dark room so that no sunlight may reach it.
6. Leave both set-ups for 30 minutes.
7. Read measurements off of gas syringe every 5 minutes.
8. Tabulate information.
Observations:
Oxygen gas is produced. This can be tested by placing a glowing splint at the mouth of the test tube. The splint should then rekindle.
Using universal indicator paper, dip a piece in the hydrogen peroxide before the test, and then after the test, in each of the set ups, dip another piece (one piece for each set up).
The piece that was dipped in the original hydrogen peroxide should show that it has a pH between 4 - 5.
This is because hydrogen peroxide has a pH of 4.5.
The piece for set up 'A' should show a pH of about 6 - 7.
This is because most of the hydrogen peroxide would have been decomposed to water.
The piece for set up 'B' should show a pH of 5 - 6. This is because there was no light to catalyze the decomposition of the hydrogen peroxide to water, therefore the solution will still be more acidic.
Conclusion: Sunlight catalyses the rate at which hydrogen peroxide decomposes into water and oxygen gas. This means that the catalyzed decomposition of hydrogen peroxide can be classified as a photolysis reaction.
I really hope this helps. Sorry for taking so long. :)
- Abby <3