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How does Concentration Affect the Speed (Rate) of Reaction.
Member rating: No Rating | Words: | Submitted: Fri Nov 21 2003
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How does Concentration Affect the Speed (Rate) of Reaction Planning experimental procedures Introduction I am investigating into the speed of reaction between sodium thiosulphate solution and hydrochloric acid and see how the different concentrations of the sodium solution will affect the rate of this reaction. The formula for this reaction is: Hydrochloric acid particles collide with sodium thiosulphate particles. The sodium and chloride atoms join to form sodium chloride, hydrogen from the hydrochloric acid is oxidised to form water and sulphur from the sulphate combines with oxygen to form sulphur dioxide with sulphur left as a precipitate. This sulphur is the yellowish substance that clouds the water, which we will be using as an indicator to stop the clock. I think chemical reactions are caused due to the collisions of particles of the reactants. When the particles have enough kinetic energy they collide forming products. The energy required to be able to burst...
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