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Investigate what happens to the rate of reaction when the concentration of Sodium Thiosulphate is altered in the reaction between Sodium Thiosulphate and Hydrochloric acid.
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Science Coursework- Rates of reaction investigation Aim The aim of this coursework is to investigate what happens to the rate of reaction when the concentration of Sodium Thiosulphate is altered in the reaction between Sodium Thiosulphate and Hydrochloric acid. Below is the reaction equation... Sodium + Hydrochloric Sodium + Water + Sulphur + Sulphur Thiosulphate acid Chloride Dioxide Na2S2o3 (aq) + 2Hcl (aq) 2Nacl (aq) + H2o(l) + So2(g) S(s) Prediction I predict that as the concentration of Sodium Thiosulphate decreases, the reaction time will increase. The reason I believe this is because the collision theory says, that when there is a high concentration of Sodium Thiosulphate, there are more particles of Sodium Thiosulphate floating around the water molecules, this increases the chance of collisions between the important particles so therefore it will take less time for the reaction to occur. Similarly, when there is a lesser concentration of Sodium Thiosulphate and a higher concentration...
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