Investigating the factors affecting the Rate of Reaction.
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Investigating the factors affecting the Rate of Reaction Introduction Different chemical reactions go at different speeds. Some, such as explosions, are very, very fast. Others, such as the rusting of iron, are much slower. There are many factors, which affect the rate of reaction. Some examples of these are temperature, surface area, concentration, catalysts, light, and pressure. These factors all affect the number of collisions per unit time. If there are more collisions, then there are more reactions per unit time. Prediction Preliminary work For my preliminary work, I performed one experiment and I used a computer simulation. Firstly, I performed an experiment with sodium thiosulphate and hydrochloric acid. Firstly, six concentrations of sodium thiosulphate were made up, which contained 30cm3, 25cm3, 20cm3, 15cm3, 10cm3 and 5cm3 of sodium thiosulphate. To each of the concentrations, water was added to make the concentration add up to 30cm3. The sodium thiosulphate was then put into a...

