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Rates of Reaction.
Member rating: No Rating | Words: | Submitted: Fri Jan 23 2004
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Rates of Reaction Aim I will be investigating the rate of reaction (how quick a reaction takes) of Sodium Thiosulphate (Na2S2O3) and Hydrochloric Acid (HCl {aq}). There are different variables that can affect the rate of reaction. The different variables include Temperature, catalysts and concentration. In this piece of coursework, I'll be analysing the concentration. The products we get are Sodium Thiosulphate + Hydrochloric Acid --> Sodium Chloride + Water + Sulphur dioxide Na2S2O3 (aq) + 2HCl (aq)--> 2NaCl (aq) + H2O (l) + SO2 (g) + S (s) Apparatus 1 Eye protection 2 measuring cylinders 1 White paper with bold black cross 1 Stopwatch 1 beaker (50ml) Sodium Thiosulphate (0.2m) Hydrochloric Acid (0.2m, 0.4m, 0.6m, 0.8m, 1m) Prediction In my prediction I presume that if the concentration of Hydrochloric Acid is increased, the faster the rate of reaction. The reason is because of the collision theory. The collision theory is linked to all the different variables that affect the rate of reaction. For...
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