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To observe the changes in reaction when sodium thiosulphate is added to dilute hydrochloric acid.
Member rating: No Rating | Words: | Submitted: Fri Oct 24 2003
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Effect of Changing Concentration Aim: To observe the changes in reaction when sodium thiosulphate is added to dilute hydrochloric acid. Prediction: I predict that the higher the concentration of hydrochloric acid is the faster the reaction will take place. Scientific knowledge: When the concentration of hydrochloric acid is high the reaction will take place faster. This is because in a high concentration of hydrochloric acid there are more particles so collisions will occur more frequently. The more collisions there are, the faster the particles will react. If there was a lower concentration of sodium thiosulphate the particles will not collide as often as they would in a high concentration so the reaction will take place slower. This is why a graph of results may look like this: Effect of Changing Concentration The temperature of the solution will effect the rate of reaction. This is because the higher the temperature is the more energy the particles will...
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