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A level biology coursework - effect of substrate concentration on rate of activity of the enzyme catalase aim: to investigate the effect of substrate concentration. Rates of reaction - sodium thiosulphate and hydrochloric acid in this piece of coursework, i will study how concentration affects the rate of reaction. Coursework was to test the rate of reaction this affects the rate of reaction by concentration, so i was looking at the concentration of sodium thiosulphate.
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