Friday, March 22, 2019

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

The reaction between sodium thiosulphate and HCLAim - The aim of this experimentation was to find fall out the rate of areaction at diametrical temperatures.- We also wanted to find out the rate of the reaction at a assorted temperature in bigger or smaller surface areas.Prediction - My vaticination is, by increasing the temperature areaction will get more(prenominal) quickly.The more heat - The Faster reaction and more conflict.The lower the temperature - The slow the reaction and lesscollision. GRAPHMy UnderstandingReactions occur at different speeds in different temperatures.Ive learnt that if the temperature is high reactions will take entrustmuch more quickly and the particles will collide more often.The put over and graphs prove my theory.The Calculator was apply 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 watch was used for timing how long it took for the reactionto happen.Method- For this experiment I jump set up the apparatus with the apparatus that is shown above.- I then poured 5lm of HCL into a conical flask.- I then measured 10 ml of sodium thiosulphate,- I then I added it to the 5 ml of HCL.- I preserve 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 compute an average.- I then repeated the experiment at 3 different temperatures.Factors and Fair TestTo make this a fair 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 iii times to make the experiment more fair. I also calculated an average, this reduces any anomalous data.Conclusion- My results show that the hotter the reactants the faster the reac tion.- 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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