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To investigate the affect of varying the concentration of hydrochloric acid on the rate of reaction between hydrochloric acid and sodium thiosulphate.
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| Submitted: Tue Aug 26 2003
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Aim of investigation: To investigate the affect of varying the concentration of hydrochloric acid on the rate of reaction between hydrochloric acid and sodium thiosulphate. Background knowledge: The equation of this reaction is Na2S2O2 + 2HCl ( 2NaCl + H2O + SO2 + S A reaction is a process by which a substance or substances change to produce a new substance or substances. Rate of reaction is the speed at which products are formed and reactants disappear during a chemical reaction. The rate will be measured by following the production of sulphur. The rate of reaction is affected by temperature, surface area, concentration and catalysts. These are the affecting factors. In a reaction, the particles of the reagent must come together and collide before the reaction can take place. This is called the collision theory, particles must collide before they can react, and the colliding particles must contain enough energy to...
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