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Rates of Reaction - Concentration.
Member rating: No Rating | Words: | Submitted: Fri Nov 28 2003
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Rates of Reaction - Concentration The rate of reaction is the rate of a loss of a reactant or the formation of a product during reaction. Although there are many different variables to test, I have chosen to experiment with different concentrations of hydrochloric acid, with sodium thiosulphate as the constant. Aim This experiment tests how differing concentrations affect the rate of a chemical reaction. It will be done using a simple experiment where one substance is constant and the other is varying. Apparatus For each experiment I will need the following; 150 cm3 2 Molar hydrochloric acid 140 cm3 water 250 cm3 sodium thiosulphate 1 conical flask 1 measuring cylinder 1 stop clock 5 pieces of paper 1 pen Preliminary Work; Prior to this investigation, I conducted a preliminary experiment to determine the strength of my method in terms of accuracy and precision. I decided to test how the temperature of an experiment affects the rate of reaction. Therefore, I got 50...
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