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How different variables will affect the rate of a reaction between Sodium Thiosulphate and Hydrochloric acid.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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INTRODUCTION: I am going to be investigating how different variable will affect the rate of a reaction between Sodium Thiosulphate and Hydrochloric acid. Sodium Thiosulphate + Hydrochloric acid Sodium Chloride + Sulphur dioxide + Sulphur + Water Na2S2O3 + 2HCl 2NaCl + SO2 + S + H2O Sodium Thiosulphate and Hydrochloric acid are both colourless solutions but when they are mixed together they become cloudy and eventually opaque. We can obviously not measure rate directly, but what we can measure is the time taken for a change to occur. Rate = Change/Time I will take the time by placing the beaker containing the Thiosulphate on a piece of paper with a cross on it. I would start the timing as soon as I added the Hydrochloric acid to the solution and I would stop as soon as I could see the cross no longer. For a reaction to take place two substances must collide. The rate...
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