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Investigating the effects of concentration on the rate of a reaction Na2S2O3(aq) + 2HCl(aq) à 2NaCl(aq) + S(s) + SO2(g) + H2O(aq)
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Investigating the effects of concentration on the rate of a reaction Na2S2O3(aq) + 2HCl(aq) --> 2NaCl(aq) + S(s) + SO2(g) + H2O(aq) The solution will become opaque. We can show how long the process takes by putting a piece of paper with a cross drawn on underneath the container of the solution and timing how long it takes for the cross to disappear. Planning: If you put sodium thiosulfate and hydrochloric acid in a conical flask together, they will first become yellow and then go cloudy and opaque. Equipment: hydrochloric acid sodium thiosulfate 100ml conical flask 2 measuring cylinders, 50cm3 and 25cm3 syringe - this is for the hydrochloric acid, it is easier than measuring cylinders 2 200ml beakers paper with cross drawn on stop clock I will use the above method as a basis to determine how concentration affects rate of reaction. If I repeat this experiment with different concentrations of sodium thiosulfate I should be able to determine a link between the...
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