Sunday, February 10, 2019

The reaction between sodium thiosulphate and HCL :: GCSE Chemistry Coursework Investigation

The reception betwixt sodium thiosulphate and HCLAim - The aim of this experimentation was to chance out the pace of areaction at different temperatures.- We also wanted to expose out the rate of the reaction at a different temperature in bigger or smaller surface areas.Prediction - My prediction is, by increasing the temperature areaction will happen more than quickly.The more heat - The Faster reaction and more collision.The lower the temperature - The slower the reaction and lesscollision. GRAPHMy UnderstandingReactions occur at different speeds in different temperatures.Ive learnt that if the temperature is high reactions will take place oftmultiplication more quickly and the particles will shake up more often.The table and graphs sample my theory.The Calculator was utilize for calculating the average of the times thatwas put down for the reactions to happen.The Beaker was used to mix the chemicals for the reaction to takeplace.The Stop wa tch was used for time how desire it took for the reactionto happen.Method- For this experiment I first dress circle up the apparatus with the apparatus that is shown above.- I then poured 5lm of HCL into a conic flask.- I then measured 10 ml of sodium thiosulphate,- I then I added it to the 5 ml of HCL.- I recorded how long it took for the reaction to take place, which was how long it took for the X to disappear.- With the times that I recorded from the experiment, I calculated an average.- I then repeated the experiment at 3 different temperatures.Factors and Fair TestTo make this a delightful test I- Kept the amount and concentration of the chemicals the same.- Varied the temperatures to find out how long it would take for a reaction to happen at different temperatures- Did each experiment at each temperature three times to make the experiment more fair. I also calculated an average, this reduces each anomalous data.Conclusion- My results show that the hotter the reacta nts the faster the reaction.- This happened because the particles move more quickely and collide more often as stated in the collision theory. - The experiment proved my prediction correct which was based upon the

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