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Rate of Reaction between Hydrochloric Acid and Sodium Thiosulphate.
Member rating: No Rating | Words: | Submitted: Sun Nov 02 2003
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Katherine Allen Rate of Reaction between Hydrochloric Acid and Sodium Thiosulphate Aim The aim of this investigation is to find out how the concentration of a solution affects the rate of reaction. I am going to investigate how the concentration of sodium thiosulphate affects the time it takes to react with hydrochloric acid. Introduction When hydrochloric acid and sodium thiosulphate solution react, one product of the reaction is sulphur. The sulphur is produced and appears slowly, eventually resulting in the whole mixture becoming opaque. The word equation for this reaction is: sodium thiosulphate + hydrochloric acid --> sodium chloride + sulphur dioxide + sulphur + water The chemical equation is: Na2S2O3 + 2HCl --> 2NaCl + SO2 + S + H2O There are several factors affecting the rate of reaction. These include the surface area, the temperature, the concentration and catalysts. Surface area The larger the surface area, the more collisions can occur. The reaction is therefore faster. This is not a factor that I need to worry about, considering it is...
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