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The determination of a rate equation Planning Apparatus needed> Four 250ml beakers> Conical flask> Five Pipettes * 20 ml X 3 * 5 ml X 2> Pipette Filler> Distilled water> Safety glasses> Thermometer> Stopwatch> Paper with black marker Solutions Needed> 250 ml of 2.0 mol dm-3 hydrochloric acid, HCl> 250 ml of 0.4 mol dm-3 sodium thiosulphate, Na2S2O3 In this experiment I will investigate to find the rate equation of reaction of hydrochloric acid with sodium thiosulphate. In the reaction we produce aqueous Sodium Chloride with sulphur and sulphur dioxide gas. According to the collision theory of reacting particles, there are five factors that affect rate: temperature, concentration (of solution), pressure (in gases), surface are (of solid reactants), and catalysts. I have chosen to investigate the effect of concentration on the rate reaction. This is because it is the most practical to investigate. Dealing with temperatures is a difficult task especially when we have to...

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