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The Rate Of Decomposition Of Hydrogen Peroxide Task To investigate the decomposition of hydrogen peroxide and measure the amount of oxygen given off with different amounts of catalyst. The catalyst I am using is Manganese Oxide (MnO2). Theory The formula for the decomposition of hydrogen peroxide is as follows: 2H202(aq) › 2H20(l) + O2(g) It is worth noting that the manganese oxide is a catalyst and therefore it is not used up, nor does it play a part in the equation. It simply acts to speed up the natural process of hydrogen peroxide decomposition. Prediction I predict that varying the amount of manganese oxide will vary the speed of the reaction because there will be a greater surface area of manganese oxide particles available on which the reaction can take place. The total amount of oxygen produced will not vary depending on the amount of catalyst used because the reaction will be allowed to proceed until completion in...

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