Catalysis: The Decomposition of Hydrogen Peroxide
Marie Cheung
Britannia Community Secondary
Floor Location : S 205 P

Hydrogen peroxide decomposes very slowly without a catalyst. A catalyst can speed up the chemical reaction that decomposes hydrogen peroxide into oxygen and water. The purpose of this experiment was to determine the best catalyst to decompose hydrogen peroxide using lead dioxide, copper oxide, and manganese dioxide. I believe manganese dioxide is the best catalyst to decompose hydrogen peroxide.rnrnThree experiments were conducted to find the best catalyst: testing for oxygen, observing the effect of each catalyst, and measuring reaction rate by the volume of oxygen collected. My experiments supported my hypothesis that manganese dioxide is the best catalyst.