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See if the concentration of a substance affects the rate of reaction.
Member rating: No Rating | Words: | Submitted: Tue Jan 25 2005
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Chemistry coursework Aim: To see if the concentration of a substance affects the rate of reaction. How long it takes different concentrations of sodiumthiosulphate in 200 ml of hydrochloric acid to go opaque so you can not see the X on a bit of paper below it Prediction: I predict that as the concentration of the substance increases, the time the reaction takes will decrease. This is due to the fact that as the concentration increases there are more particles to collide in to each other and react. Fair testing: To make it a fair test we did a number of things. Firstly we always made the X the same size so that we would get the same visibility with each one. Then we used the same amount of hydrochloric acid for each one, so that each would get an equal amount to react in. tried to time as well as possible and rounded all the...
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