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To find out how the concentration of sodium thiosulphate solution affects the rate of its reaction with hydrochloric acid.
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Chemistry Coursework Aim To find out how the concentration of sodium thiosulphate solution affects the rate of its reaction with hydrochloric acid. Prediction I predict that the higher the concentration of Sodium Thiosulphate solution the faster it will react with the hydrochloric acid. Firstly for a reaction to take place the particles must collide and secondly collide with enough energy to break and make new bonds. When the sodium thiosulphate is concentrated there are more particles in a given volume, therefore there is a greater chance of the particles successfully colliding and reacting with the hydrochloric acid. The more collisions between particles in a given time, the faster the reaction will take place. Word Equation Sodium Thiosulphate Sodium Chloride + Sulphur dioxide + Hydrochloric Acid + Sulphur + Water Symbol Equation Na2S2O3 + 2HCl 2NaCl + SO2 + S + H2O The products of this equation are sodium chloride, commonly known as salt, sulphur dioxide, which...
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