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Investigating how concentration of hydrogen peroxide affects its decomposition using manganese dioxide as a catalyst.
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Rachael O'Reilly Investigating how concentration of hydrogen peroxide affects its decomposition using manganese dioxide as a catalyst. Background information To investigate how concentration affects the rate of reaction we will be reacting calcium carbonate and hydrochloric acid, using manganese dioxide as a catalyst. To make this a fair test we will need to keep all variables the same except the one under investigation, which in this experiment is the concentration of hydrogen peroxide. To measure the rate of reaction we will be measuring the amount of oxygen produced. The equation for this reaction is; 2H O 2H O + O Catalysts A catalyst, in chemistry is any substance that increases the rate of reaction without being changed itself. Enzymes are naturally occurring catalysts, responsible for many bio - chemical reaction. Most solid catalysts are metals or the oxides, sulfides and halides of metallic elements and of the semi - metallic boron, aluminum and silicone. Gas catalysts...
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