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How Does Concentration Affect the Rate of a Reaction?
Member rating: No Rating | Words: | Submitted: Mon Feb 02 2004
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How Does Concentration Affect the Rate of a Reaction? Planning experimental procedures Aim: In this experiment I am going to see if varying the concentration of the mixture of Sodium Thiosulphate and Dilute Hydrochloric Acid affects the speed of reaction. The amount of Sodium Thiosulphate will be varied and to make up water will be added. Hypothesis: I think that as the amount of Sodium Thiosulphate in the concentration decreases the larger the reaction time becomes. I think this because the particles will have to move around the water particles so that they can react with each other, also if there are more particles there will be more collisions and so a faster reaction. On the left is a diagram of the particles colliding. Apparatus: Dilute Hydrochloric Acid Sodium Thiosulphate Water Beaker Stopwatch 50cm3 Measuring Cylinder 10cm3 Measuring Cylinder Paper (with cross (X) drawn on it in pencil) Conical Flask Goggles Safety: I will make this experiment safe by wearing goggles to stop chemicals from entering...
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