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Sunday, March 17, 2019

The reaction between Sodium Thiosulphate and Hydrochloric acid :: GCSE Chemistry Coursework Investigation

Investigate what happens to the rate of reply when the concentration of Sodium Thiosulphate is neutered in the reaction betwixt Sodium Thiosulphate and Hydrochloric acid.Rates of reaction investigation betokenThe aim of this coursework is to investigate what happens to the rateof reaction when the concentration of Sodium Thiosulphate is alteredin the reaction between Sodium Thiosulphate and Hydrochloric acid.Below is the reaction equationSodium + Hydrochloric Sodium + Water + Sulphur+ SulphurThiosulphate acid Chloride DioxideNa2S2o3 (aq) + 2Hcl (aq) 2Nacl (aq) + H2o(l) + So2(g) S(s) vaticinationI predict that as the concentration of Sodium Thiosulphate decreases,the reaction cartridge holder pass on increase. The reason I believe this is becausethe collision theory says, that when at that place is a high concentration ofSodium Thiosulphate, there are more(prenominal) particles of Sodium Thiosulphatefloating round the water molecules, this increases the chance ofcollisions b etween the pregnant particles so therefore it exit takeless time for the reaction to occur. Similarly, when there is a lesserconcentration of Sodium Thiosulphate and a higher(prenominal) concentration ofwater, there are less particles of Sodium Thiosulphate floating aroundthe water molecules, this decreases the chance of collisions betweenthe important particles so therefore it will take more time for thereaction to occur.MethodEquipment needed* 1 Bottle of Sodium Thiosulphate* 1 Bottle of Hydrochloric Acid* Water* 1 Beaker* 2 pipettes* 2 measuring cylinders* Goggles* Paper with X cicatrix* Stop clockIn order for me to air pop my experiments I would need to change theconcentration of Sodium Thiosulphate in the reaction between SodiumThiosulphate and Hydrochloric Acid. I would do this by keeping thetotal ledger of the reactant 50 all the time. I would change theconcentration of Sodium Thiosulphate by decreasing the volume ofSodium Thiosulphate and increasing the volume of water in tendifferent experiments. In each of the experiments I would keep the measuring of Hydrochloric acid the same and this would be 5cm. Below isa table of how I would do this. GRAPHIn order for me to get an accurate result, I am going to carry outthese experiments tercet times. I will then work out the average resultfor all three and use that to create my graph which will tell me howthe rate of reaction is affected by using different concentrations.In order for me to carry out my experiments I would need to follow thefollowing procedures1. Draw out an X on a paper and place it underneath the leisure

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