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How concentration affects the “rate of reaction”
Member rating: No Rating | Words: | Submitted: Fri Jun 03 2005
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Sodium Thiosulphate Aim: How concentration affects the "rate of reaction" My Investigation will contain the following features: * Background information Rates of reaction * Plan * Equipment I used * Prediction * Method * Diagram * Fair test * Results * Conclusion * Evaluation Background Sometimes a change in colour can be used to follow the progress of a reaction. The reaction between sodium Thiosulphate solution and hydrochloric acid slowly produces a creamy white precipitate of sulphur. Sulphur dioxide gas and water are also produced. The reaction is between Thiosulphate ions, S2 O3 2- and hydrogen ions H+, from the acid. Plan I am going to investigate the rate of reaction of Sodium Thiosulphate, and how can Sodium Thiosulphate and water affects how fast the reaction takes to become complete. I will use three solutions in this investigation: Sodium Thiosulphate Na2S2O3 (Aq), Hydrochloric Acid 2HCl (Aq) and Water H2O (L). The input variable with be the volumes of Sodium Thiosulphate and Water. The amount...
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