Tusker Toothpaste II
Question: How do Catalysts Work?
What is Hydrogen Perioxide - H2O2
A colorless liquid usually produced used in various strengths for: · Bleaching cotton and other fabrics · Bleaching wood pulp ( the base for paper products) · Manufacturing other chemicals such as rocket propellant! · Used in cosmetic and medicinal purposes Hydrogen Peroxide can be purchased in varying strengths from 3% to 98%, the higher the percentage the faster the oxidation occurs so the more heat that is generated and the more hazardous it becomes. 3% is the strength of Hydrogen Peroxide that most parents keep at home to clean and disinfect cuts – this can be purchased at the grocery/pharmacy. We used 6% ( also known as 20 Volume ) this was purchased at the Beauty Supply store as they use it in hair products. (cosmetic purposes). 20-volume means that, when 1 volume of hydrogen peroxide is decomposed, it produces 20 volumes of oxygen. |
What is Yeast?
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Procedure:1) Place the soda bottle in the middle of the tray and put the funnel into the opening
2) Pour 1 Tablespoon of Yeast into a cup and add 3 Tablespoons of warm water and stir – set aside 3) Pour ½ cup of Hydrogen Peroxide into the bottle 4) Pour 1 tablespoon of Dishwashing liquid into bottle and swirl to mix 5) Choose Food Coloring Color of Choice and add 4 drops of color in total to drip down the inside of the bottle. 6) Now add the Yeast mixture 7) Remove Funnel 8) Step back and enjoy! |
Did you think this was cool?
We call it Tusker (Elephant) Toothpaste only because what happens in the bottle looks like enough toothpaste for an elephant to use!
A small amount of Hydrogen Peroxide generates a large volume of oxygen, so when the catalyst of Yeast is added, which contains catalase, the liquid begins to break down very quickly and reacts with the oxygen and starts to quickly push out of the container.
The liquid soap is used ONLY to trap the oxygen that is released and the bubbles then turn to foam – make is easier to view the experiment
Oxygen quickly leaves the container causing strong foam so it erupts out of the top of the bottle. This foamy substance is caused by RAPID decomposition of Hydrogen Peroxide.
A small amount of Hydrogen Peroxide generates a large volume of oxygen, so when the catalyst of Yeast is added, which contains catalase, the liquid begins to break down very quickly and reacts with the oxygen and starts to quickly push out of the container.
The liquid soap is used ONLY to trap the oxygen that is released and the bubbles then turn to foam – make is easier to view the experiment
Oxygen quickly leaves the container causing strong foam so it erupts out of the top of the bottle. This foamy substance is caused by RAPID decomposition of Hydrogen Peroxide.
About Author 1Small blurb about each one, add or remove columns depending on size of team
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About Author 2use humor, pictures, whatever you want
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