Objective
Investigate how different catalysts influence the rate of hydrogen peroxide decomposition.
Materials
- Hydrogen peroxide (H2O2)
- Potato or yeast (natural catalysts)
- Manganese dioxide (chemical catalyst)
- Beakers
- Graduated cylinder
- Stopwatch
- Notebook for observations
Instructions
- Measure a specific volume of hydrogen peroxide in a beaker.
- Add a small piece of potato or a few granules of yeast to the beaker.
- Start the stopwatch and observe the rate of oxygen gas evolution.
- Repeat the process with manganese dioxide as a catalyst.
- Record the time it takes for the reaction to complete in the notebook.
- Compare the effectiveness of different catalysts in speeding up the reaction.
- Analyze the results to understand how catalysts influence reaction rates.