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To investigate how concentration affects the rate of reaction between sodium thiosulphate and hydrochloric acid.
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| Submitted: Thu Jul 11 2002
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Rates of Reaction Aim: To investigate how concentration affects the rate of reaction between sodium thiosulphate and hydrochloric acid. Word Equation Sodium Thiosulphate + Hydrochloric Acid - Sulphur + Sulphur Dioxide + Sodium Chloride + Water Balanced Equation Na2 S2O3 (aq)+2HCL(aq) - So2 (g)+2NaCl (aq) Introduction The rate of a reaction is the speed at which a reaction happens. If a reaction has a low rate that means the particles collide at a slower speed than a reaction with a high rate. Chemical reactions only occur when reacting particles collide with each other with sufficient energy. Activation energy is the minimum amount of energy needed to cause a reaction. Temperature, surface area, concentration, and a use of catalyst are the four different ways in which you can increase the rate of reaction. Temperature: When you raise the temperature of a system the particles bounce around a lot more (because they have more energy). When they...
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