Sunday, June 2, 2019
How does the length of Magnesium affect the rate of reaction? Essay
How does the length of Magnesium affect the number of reaction?Input Variables Magnesium stripHydrochloric sexually transmitted disease termination Variable - Release of hydrogenI have chosen to investigate whether the difference in length of aMagnesium ribbon, would change the speed in which the reaction betweenHydrochloric acid and Magnesium takes. We depart measure this by timinghow long until the atomic number 12 strip vanishes and there is no release ofHydrogen. sharpen I am trying to find out whether the length of Magnesium causesany alterations in the rate of reaction between Hydrochloric acid andMagnesium. I will be measuring this by timing how long it takes forthe magnesium to be no longer visible and there is no hydrogenreleased.Prediction I think that when Hydrochloric acid of the same volumecome in to contact with Magnesium of different lengths of ribbon,, therate if reaction for the longer strip would be faraway slower than theshorter one. I believe that this as the collision theory tells us thatmolecules collide which cause to react and merge to create a compound.This reaction varies in speed depending on the amount of molecules inthe mixture and how much energy the molecules possess, which is whyheated molecules react faster than normal ones. So with the amount ofHydrochloric acid staying relatively the same yet the number ofMagnesium molecules increasing, the reaction will only take longer asthe molecules have to collide even more than for the reaction to becomplete.Hypothesis If my prediction is to be proven correct, then the timetaken to react to the long-lasting strip of Magnesium would take thelongest and the short strip would take the least amount of time. Weshould also see from repeated attempts at this experiment, that theaverages would also increase depending on the length of the Magnesiumribbon. keep Variables I have chosen not change the volume of hydrochloricacid, and the width of acid will alter the amount and effectiveness of the acid, which will make the rate of reaction speed up and cause anunfair experiment. I have also kept the magnesium strip the sameribbon, as if the width if the magnesium strip is changed, the surfacearea would become larger and more molecules would be able to collideat one time, which would mean that the rate of reaction would befaster.Preliminary Work I have... ...unt of timetaken to perform the experiment and would give me the opportunity formore tests to be taken and more data to be retrieved.However, the tests that were performed were a fair test as the methodused was very simple, so error wasnt a large factor. This meant thatthe solution could react without beingness tampered with. Although, onperforming the second attempt for the 5cm strip, the tube wasaccidentally split by passers by, so we had to stop the time andrecord the time thus far. This could be the cause for the anomalieswithin the results and if I were to do it again, I would expect theresults to be greatly di fferent.Due to the amount of stopwatches used in the experiment, we were ableto get the hold time for each test tube, which was easier forrecording than just using one, which I did during the preliminaryexperiment.Conclusion In conclusion, I found out that my prediction was proper(ip)and that the longer strip took a comparatively longer reaction timethan the short two centimetre strip. This can be seen from theevidence gathered, which I believed to be accurate and would appearagain if this experiment were to be performed once more.
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