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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 discover if the reaction rate of atomic number 11 thiosulphate solution and hydrochloric acid aloneow be affected bya temperature change.PredictionI predict that as a solving of increasing the temperature of the sodiumthiosulphate, the rate of reaction will be double-quick. 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 feeding out the experiment, I must first of all begin thepreliminary work. This part of the experiment will enable me to choosean appropriate musical scale of temperatures, and to decide upon the sum up ofsodium thiosulphate solution that will be used (the concentration).After doing this, I will then begin to carry out the experiment. Iwill for the first time put a measured amount o f sodium thiosulphate solutioninto a glass bottle, measure the temperature, and then add thehydrochloric acid. Immediately subsequently I will seal the lid and putit on top of a dark-skinned look into, then start the stopwatch. I will observefrom to a higher place and when the black mark is no longer visible, I will stopthe stopwatch, measure the temperature again and record theseresults. I will reverberate the experiment a further 2 times to ensurereliable results and continue this method for each temperature.To make certain that my experiment will not be dangerous, I will carryout approximately basic safety precautions. I will firstly ensure that there isa safe working field of study 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 gra ph 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 contact 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 compensable attention to detail and spending longer oneach experiment. However, despite this I still managed to achievequite regular repeats and results that intelligibly 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 temper ature change.PredictionI 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 w hen the black mark 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 temp erature 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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