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To find the effect of changing the concentration on the rate of reaction between sodium thiosulphate and hydrochloric acid.
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Chemistry Coursework Sc 3 Coursework Aim - To find the effect of changing the concentration on the rate of reaction between sodium thiosulphate and hydrochloric acid. Background knowledge - What is 'rates of reaction'? - This tells us how quickly a chemical reaction happens. There is no way of finding out the rate of reaction by the chemical equation. The only way to do it is to actually do the experiment. During a reaction we can measure how much reactant is used up in a certain time Previous rates of reaction experiment - This experiment was done to use the catalyst, the pumis to speed up the reaction. Heating the catalyst would speed up the reaction greatly. Graphs - I can use a graph to measure the rate of reaction at any given time. Therefore the steeper the slope, the faster the reaction. The annotated graph explains what the gradient of the line means. Catalysts -...
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