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The data will be recorded by measuring the distance travelled by the first oxygen bubble after the set time of 10 seconds.
Member rating: No Rating | Words: | Submitted: Wed Aug 20 2003
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Data Recording: The data will be recorded by measuring the distance travelled by the first oxygen bubble after the set time of 10 seconds. There is a set time of 10 seconds because after this time of activity, the enzyme Catalase begins to degrade and therefore the rate of reaction becomes slower. The table will be set up in the following way: Test Number Concentration / % Distance Travelled / cm 1 100 2 100 Average 100 1 80 2 80 Average 80 1 60 2 60 Average 60 1 40 2 40 Average 40 1 20 2 20 Average 20 Volume must be kept the same of the overall solution otherwise different scaled will be presented i.e. more substrate than usual: the bubble will go further; the result is not reliable and cannot be used. Safety Precautions: H2O2 at 20 volume (100% for this experiment) is a significant irritant, if it contacts the eyes it could cause itching and could lead to eye damage, therefore goggles must be worn during all handlings of H2O2. Care must also be taken with the H2O as it can come out...
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