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Investigate factors that may affect the rate of reaction of sodium thiousulphate when added to hydrochloric acid
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| Submitted: Thu Jul 11 2002
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Investigate factors that may affect the rate of reaction of sodium thiousulphate when added to hydrochloric acid Problem Investigate factors that may affect the rate of reaction of sodium thiousulphate when added to hydrochloric acid. When sodium thiosulphate is added to hydrochloric acid a salt, sodium chloride, water, sulphur dioxide and sulphur are produced. Here is the equation for the reaction Sodium Thiosulphate + Hydrochloric Acid = Sodium Chloride + Water + Sulphur Dioxide + Sulphur Na2S2O3 (aq) + 2HCl (aq) = 2NaCl (aq) + H2O (l) + SO2 (g) + S (s) When these two substances react the solution they form becomes cloudy because a precipitate is formed. I will use this change to investigate the problem as explained later. Background Knowledge In a chemical reaction, the starting materials are called the reactants, and the finishing materials are called the products. It takes time for a chemical reaction to take happen. If the reactant takes only...
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