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To find how changing the concentration changes the rate of reaction."
Member rating: No Rating | Words: | Submitted: Tue Aug 12 2003
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David Robinson... Chemistry Science 1 Miss Armitstead Year 11 Boys. Preliminary Research... Before I conducted my research I tried to do my experiment using only 5cm2 of both the chemicals but found that this was to little and I found it to hard to decipher weather or not the chemical reaction had finish. So to help my experiment be more accurate I used 50cm2. Before I carry out the real experiment I am going to do a smaller one to see what molar acid I will use for the final experiment. I am using 100% sodium thiosulphate and a variety of molars. 100% thio 1m 2m 3m 4m Time(secs) 37.61 29.39 14.87 5.11 I am going to use one molar acid as I will be able to produce more accurate results, this is because it takes longer for the reaction to take place, and so this will make it easier to measure precisely. Secondary Research... The Graph above is a graph...
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