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A Murky Problem.
Member rating: No Rating | Words: | Submitted: Mon Jan 05 2004
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A MURKY PROBLEM A chemical company on the banks of the river Lagan routinely discharges waste chemicals into the river. On certain days, when waste products include sodium thiosulphate and hydrochloric acid, the river water in the vicinity becomes cloudy and the stones and sand at the bottom can no longer be seen. Observers have noticed that this problem is worse in the summer. Investigation I chose to investigate the concentration of the water. Concentration affects the speed of reaction. Background Knowledge There are five types of rates of reactions. They are: 1. Temperature 2. Concentration 3. Cataylst 4. Surface area 5. Pressure From the list above, I decided to exclude Surface area and Pressure. In general, particles must collide and each collision has to have a certain amount of energy for it to be a successful reaction. I will need the ionic equation to refer to: S O + 2H --> S + SO + H O Predictions I predict, in this experiment,...
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