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An investigation to find out how concentration affects rate using the reaction of Sodium Thiosulphate and Hydrochloric Acid.
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An investigation to find out how concentration affects rate using the reaction of Sodium Thiosulphate and Hydrochloric Acid. Background: High Concentration increases rate by making the reactants more likely to collide because of there being more of one reactant; or when the concentration is low it decreases the rate by making less collisions occur. Increasing the rate by concentration is when there are more reactant molecules in the same space, which makes the reactants, collide more often (as shown in the diagram below). So if there was a high concentration of one reactant in a reaction, the two reactants would collide more often; this would speed up the rate of the reaction. The opposite would happen if there was a low concentration as there would be less molecules in the same space; this would decrease the rate of reaction because there would be fewer collisions between the reactants (as shown in...
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