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What effect does the concentration have on the rate of a chemical reaction
Member rating: No Rating | Words: | Submitted: Wed Aug 13 2003
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What effect does the concentration have on the rate of a chemical reaction Aim ~ to investigate the reaction between Hydrochloric Acid and Sodium Thiosulphate. 2Hcl[aq] + Na2 S2 O3[aq] --> H20[l] + SO2[g] +S[s] +2NaCl[aq]. The sulphur Precipitate causes the reaction mixture to go cloudy. We will use a light sensor to measure the progress of this reaction. Theory ~ the theory for reacting particles depends on how often and how hard the reacting particles collide with each other. For the particles to be able to do this they need ACTIVATION ENERGY, as they need enough energy to react. There are four factors that affect the number of collisions these are: ~ The temperature, which increases the amount of collisions. ~ The Surface area, which create more collisions. ~ A Catalyst, which increases the number of collision, as the particles have a surface to stick to where they can bump into each other. ~ The Concentration....
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