What factors affect the rate of the decomposition of hydrogen peroxide with a fixed mass of catalyst?

P LANNING Aim: Our aim is to detect which factors affect the enume stray of the decomposition of henry peroxide with a fixed plug of gas pedal. A catalyst is a substance, which alters the look sharp, or rate of a chemical reply but is chemically unvarying at the end of the reaction. The dickens factors that we can change be the temperature and the meanness. We chose to vary the tightness of heat content peroxide. The catalyst to speed up the reaction without affecting the solution will be manganese oxide. Prediction: I predict that the higher the tightness of heat content peroxide, the faster hydrogen peroxide and manganese oxide decomposes. so the lower the concentration of hydrogen peroxide, the lower the rate that hydrogen peroxide and manganese oxide decompose. The prediction we have just rack up has been based on the collision theory-Chemical reactions occur when particles of the reactant collide with sufficient energy (John Holman page 225). If the concen tration of the solution is high then thither is more chance of the particles colliding. This is because if the concentration increases then so does the valet activity of particles. The more particles there are, the greater the chance of the particles colliding so wherefore that gives reason to believe that the rate of the reaction increases. Pre-test During our pre-test lesson we required to let out the ideal mass of catalyst. We began with 1g of manganese oxide, which we weighed on a top-pan agreement and added it to 100cm of hydrogen peroxide. We used 100% concentration because we thought that to crack our catalyst mass was suitable we necessitate to see what the more or less reactant experiment would be like. However, 1g of manganese oxide seemed to be too oftentimes as the come up of gas was produced too quickly and we were ineffective to record any... If you indirect request to get a full essay, mold it on our webs ite: Or! derEssay.net

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