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What are the possible systematic errors and random errors that could affect the results when all other factors that could affect the rate of reaction are kept constant except for the concentration of sulfuric acid? I'm doing an experiment of the rate of reaction between powdered marble chips(calcium carbonate) and dilute sulfuric acid solution.The aim is to determine the effect of different concentrations of sulfuric acid on the rate of reaction of powdered marble chips (calcium carbonate) with sulfuric acid.

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Random errors are going to result in data being slightly different each trial even though nothing in the experimental set up has been changed.  These kinds of errors typically result if the experimenter is not uber careful in taking measurements.  It's also possible that the measuring devices are not accurate enough.  If you are using a balance instead of a digital gram scale to measure sample size of marble chips, you are very likely to not have exactly the same amount of chips.  You'll be...

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