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An investigation into how concentration affects the rate of a reaction
Member rating: No Rating | Words: | Submitted: Tue Sep 02 2003
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An investigation into how concentration affects the rate of a reaction PLANNING AIM The aim of this investigation is to see how differing concentrations of a solution affect the rate of a reaction. In this case, the solution is Hydrogen Peroxide solution (H2O2) and the catalyst is Manganese Oxide (MnO4). VARIABLES The variables that must be controlled in this reaction are: * Temperature * Concentration of solution * pH * Time * Catalysis * Surface area of catalyst (powder or granules) * Volume/Mass (solution/catalyst) The variable I have chosen to control is the concentration of the solution. HYPOTHESIS The reaction that I plan to measure is: MnO4 2H2O2 = 2H2O + O2 I believe that as the concentration of the solution increases, the rate of the reaction will also increase, in the same ratio. Further to this, this will be in a directly proportional ratio, giving a straight-line graph through the origin on a 'rate against concentration' graph. However, this rate cannot continue exponentially, there must be...
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