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Investigate how the rate of reaction changes by varying the concentration of HCL and Sodium Thiosulphate.
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Science Coursework Aim: I aim to investigate how the rate of reaction changes by varying the concentration of HCL and Sodium Thiosulphate. Prediction: My prediction is based on the idea of the collision theory. The collision theory states that basically the rate of reaction depends on how fast and often atoms collide. As a result of this I say the more concentrated the mixture the more the more the atoms will collide and create a reaction faster. A more concentrated substance has more molecules for a given volume than a more dilute substance. Because there are more molecules about, the frequency of successful collisions is greater, and the reactions happen faster. This source clearly backs up my prediction saying how the collision theory comes into practice. Method To make the method work to a greater degree of accuracy we had to use several pieces of apparatus: Distilled Water HCL Sodium Thiosulphate Conical Flask Paper marked with X using black marker Measuring Cylinder 1....
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