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The aim of our experiment was to find out if the temperature of two reactants affected the speed of the reaction between them.

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Introduction

Chemistry Coursework Aim: The aim of our experiment was to find out if the temperature of two reactants affected the speed of the reaction between them. Method: The first thing that we did was to put on all of our safety gear such as the safety specs. The only other essential equipment that we would be wearing would be a lab coat because we were dealing with acids. Step two of our experiment was to set up all of the equipment such as the Bunsen burner and the ceramic tile below it. We also had to fetch the conical flasks and the bottles of acid and the ones of the thiosulphate. The next thing to be got is the measuring cylinders and the cylinder to measure out the exact same amount of reactants every time. We also had to get a thermometer so that we can measure the temperature every time precisely. ...read more.

Middle

Readings: I have planned to take a total of six to eight readings for the experiment as I think that is both the best use of my time and it will be enough to get a reliable line on the graph. I shall also do the whole experiment twice and then take the average if both lots of my results are good enough. Otherwise I shall just take the best set. If I take the average of the two times from the two temperatures then I must remember to take the averages of the two temperatures as well. I will calculate the rate of reaction by using the formulae TOTAL TIME / AMMOUNT OF ACID. I have used some secondary information from my Chemistry for you book and also the internet. I have also asked my teacher if I am unsure of something. Equations: The equation for this experiment is: Sodium + Hydrochloric = Sodium + Water + Sulphur + Sulphur Thiosulphate acid Chloride Dioxide Na2S2O3 (aq) ...read more.

Conclusion

in my final attempt because I had two goes at getting reliable results and I was able to ask my teacher which results that I got were the most reliable and therefore the best one to use in my graphs and results table. I think that I got no real anomalies as I feel that all of the results were fairly close to the line of best fit. I feel that I have got the results as close to the 'real' results in the environment that was available to me. If I was able to I would have liked to do it with electrical equipment to get the most reliable results and instead of using a Bunsen burner to heat the acid I would have liked to do it in a bowl of hot water so that it warmed through equally because I am sure that the base of the conical flask would have been a lot hotter than the sides and the acid was touching all of the sides. ...read more.

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