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Tuesday, May 28, 2019

The Effect of Temperature on the Rate of Reaction Essay -- GCSE Chemis

The effect of temperature on rates of replyAimThe aim of this experiment is to find out if the reaction rate ofsodium thiosulphate solution and hydrochloric acid leave behind be affected bya temperature change.PredictionI predict that as a entrust of increasing the temperature of the sodiumthiosulphate, the rate of reaction allow for be faster. Be arrange of theincrease in temperature, the particles will gain more kinetic energy.This will therefore cause them to move faster and produce moresuccessful collisions, causing the rate to increase.PlanNa S O + 2HCl S + SO + 2NaCl + H OBefore acquireing out the experiment, I must first of all told begin thepreliminary work. This part of the experiment will enable me to optan appropriate denture of temperatures, and to decide upon the amount ofsodium thiosulphate solution that will be used (the concentration).After doing this, I will then begin to carry out the experiment. Iwill firstly put a measured amount of sodium thiosulphate so lutioninto a glass bottle, measure the temperature, and then add together thehydrochloric acid. Immediately after I will seal the lid and putit on top of a baleful mark, then start the stopwatch. I will observefrom supra and when the black mark is no longer visible, I will stopthe stopwatch, measure the temperature again and record theseresults. I will usurping the experiment a further two times to ensurereliable results and continue this method for each temperature.To make certain that my experiment will non be dangerous, I will carryout some basic off the hook(predicate)ty precautions. I will firstly ensure that there isa safe working athletic field around me by clearing the desks and removingstools. I will then make sure that I am wearing safety furnish at alltimes and han... ...there were somesources of error and areas that I could have improved if repeating theexperiment. I also noticed that there were a a few(prenominal) anomalous results onmy graph and these could b e due to a few sources of error thatoccurred during my experiment.I felt that by timing the reaction from personal appreciation about whenthe black mark was no longer visible was not as accurate as I wouldhave liked. Also the fact that it was rather difficult to light upon theexact temperature of the sodium thiosulphate solution by heating it,made the experiment a little inaccurate. To give myself completelyaccurate results I would have to repeat the reactions that gave meanomalous results paying attention to detail and spending longer oneach experiment. However, despite this I still managed to achieve kinda regular repeats and results that understandably followed and backed upmy prediction. The Effect of Temperature on the Rate of Reaction Essay -- GCSE ChemisThe effect of temperature on rates of reactionAimThe aim of this experiment is to find out if the reaction rate ofsodium thiosulphate solution and hydrochloric acid will be affected bya temperature change.Pr edictionI predict that as a result of increasing the temperature of the sodiumthiosulphate, the rate of reaction will be faster. Because of theincrease in temperature, the particles will gain more kinetic energy.This will therefore cause them to move faster and produce moresuccessful collisions, causing the rate to increase.PlanNa S O + 2HCl S + SO + 2NaCl + H OBefore carrying out the experiment, I must first of all begin thepreliminary work. This part of the experiment will enable me to choosean appropriate scale of temperatures, and to decide upon the amount ofsodium thiosulphate solution that will be used (the concentration).After doing this, I will then begin to carry out the experiment. Iwill firstly put a measured amount of sodium thiosulphate solutioninto a glass bottle, measure the temperature, and then add thehydrochloric acid. Immediately afterwards I will seal the lid and putit on top of a black mark, then start the stopwatch. I will observefrom above and when the black m ark is no longer visible, I will stopthe stopwatch, measure the temperature again and record theseresults. I will repeat the experiment a further two times to ensurereliable results and continue this method for each temperature.To make certain that my experiment will not be dangerous, I will carryout some basic safety precautions. I will firstly ensure that there isa safe working area around me by clearing the desks and removingstools. I will then make sure that I am wearing safety glasses at alltimes and han... ...there were somesources of error and areas that I could have improved if repeating theexperiment. I also noticed that there were a few anomalous results onmy graph and these could be due to a few sources of error thatoccurred during my experiment.I felt that by timing the reaction from personal judgement about whenthe black mark was no longer visible was not as accurate as I wouldhave liked. Also the fact that it was quite difficult to achieve theexact temperature of the sodium thiosulphate solution by heating it,made the experiment a little inaccurate. To give myself completelyaccurate results I would have to repeat the reactions that gave meanomalous results paying attention to detail and spending longer oneach experiment. However, despite this I still managed to achievequite regular repeats and results that clearly followed and backed upmy prediction.

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