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The Reaction between Sodium Thiosulphate and Hydrochloric Acid.
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The Reaction between Sodium Thiosulphate and Hydrochloric Acid Introduction The "rate of reaction" is defined as the rate of loss of a reactant or the rate of formation of a product during a chemical reaction. This piece of coursework is an investigation into "rates of reaction" between sodium thiosulphate and hydrochloric acid and the effect that different concentrations have on them. It may be noted that when sodium thiosulphate and hydrochloric acid are mixed together the mixture precipitates. It turns cloudy and then a creamy white colour which turns yellow and becomes thicker until it eventually solidifies. There are five factors which affect the rate of a reaction, according to the collision theory of reacting particles: Temperature; The rate of reaction will increase if the temperature is raised. Heat gives more particles an energy greater than the activation energy causing them to collide more often and with greater force. It will be hard to...
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