Size Gcse Coursework Biology Potato Catalase Hydrogen Peroxide

i believe that my data does reflect my hypothesis that “as the concentration of hydrogen peroxide decreases that rate of reaction will decrease consequently because there will be few collision between enzyme and substrate molecules due to a decreased number of molecules”.

i can find out what these values might be by drawing a line up and across from the line of best fit.

overall, i believe my experiment went well and i believe that i gained sufficient results because i repeated each concentration 3 times, and investigated 8 concentrations in total., with the new and repeated results i will be able to analyse my results further and therefore evaluate them with more evidence than i had previously.

initial rate of reaction is fastest for the 100% concentration of hydrogen peroxide and gradually decreases as the concentration decreases.

reaction is exothermic, and so heat is obviously produced in the reaction.

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proceeded at a rate of "4" and record the speed in data.hence, there is a chemical need to remove hydrogen peroxide in a very rapid rate.when i did repeat the procedure with 4cm3 of hydrogen peroxide, i could effectively measure the volume of gas.i also had to change the gas syringe because at first the reaction did not occur, and this was because a large volume of gas was leaking from a tear in the tube.this is because as the concentration decreased, the number of molecules of hydrogen peroxide also decreased.will record my results in a table like the one below, and then record further, average results, in a similar table.measuring the volumes of hydrogen peroxide, yeast and water the.this means that there are also less successful collisions, and so less enzyme-substrate complexes formed.believe that the graph will firstly start of steep in all the reactions, but steepest in the 100% concentration of hydrogen peroxide and gradually decreasing as the concentration of hydrogen peroxide decrease.hydrogen peroxide so there would have either been more or fewer molecules of hydrogen peroxide.will also repeat the 100% concentration of hydrogen peroxide, because i believe this was an anomalous result.

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Comments Size Gcse Coursework Biology Potato Catalase Hydrogen Peroxide

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