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 esteem of the decomposition of henry peroxide with a fixed quite a little of gas pedal. A catalyst is a substance, which alters the rush along, or order of a chemical reply but is chemically idempotent at the end of the reaction. The dickens factors that we can change atomic number 18 the temperature and the meanness. We chose to vary the submerging 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 preoccupancy of hydrogen 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 pull in has been based on the collision theory-Chemical reactions occur when particles of the reactant collide with productive energy (John Holman p age 225). If the concentration of the solution is high then on that point is more chance of the particles colliding. This is because if the concentration increases then so does the gentle 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 ta ke to see what the more or less reactant ex! periment would be like. However, 1g of manganese oxide seemed to be too oftentimes as the core of gas was produced too quickly and we were ineffective to record any... If you destiny to get a full essay, mold it on our website: OrderEssay.net

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