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An investigation to see how concentration affects the rate of reaction.
Member rating: No Rating | Words: | Submitted: Wed Nov 26 2003
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An investigation to see how concentration affects the rate of reaction. Aim: To see by varying the concentration of sodium thiosulphate affects how fast the cross disappears. Diagram: Method: First set up the equipment, take all safety precautions. For the first one do the more concentration then gradually to the least concentration. First put the 25cm3 of sodium thiosulphate in a measuring cylinder then put it into a empty beaker then put in 5cm3 of hydrochloric acid into the same beaker, start the stop clock and wait for the cross to disappear. When you do the less concentrations after the first one put the necessary amount of water in second after the necessary amount of sodium thiosulphate and repeat it with the chart below at the end of this method. Repeat each concentration 3 times for an accurate result and if there are any odd results repeat them. These are the concentrations...
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