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To measure the rate of reaction of thiosulphate ions with acid in solution, and find out how the rate depends on the concentration of both thiosulphate and acid.
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| Submitted: Sat Aug 30 2003
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Chemistry - CH2 Practical Assessment Plan for Practical Assessment Aim: To measure the rate of reaction of thiosulphate ions with acid in solution, and find out how the rate depends on the concentration of both thiosulphate and acid. Background Information: Reactions can only happen when the reactant particles collide, but most collisions are not successful in forming product molecules. The reactant molecules must collide with enough energy to break the original bonds so those new bonds in the product molecules can be formed. All the rate-controlling factors are to do with the frequency of reactant particle collision. If the concentration of any reactant in a solution is increased, the rate of reaction is increased. Increasing the concentration, increases the probability of a collision between reactant particles because there are more of them in the same volume. The exact relationship between reaction rate and concentration depends on the reaction "mechanism". This is the process involving...
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