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Friday, March 15, 2019

An experiment to investigate the effect of changing the concentration E

An experiment to investigate the effect of ever-changing the concentrationof hydrochloric savage on the rate of chemical reaction with atomic number 11 thiosulpahte. conceptionI am trying to find out how the concentration of hydrochloric virulentaffects the reaction clock time with atomic number 11 thiosulpahte.If a clear solution of sodium thiosulphate is mixed with hydrochloricacid hence a reaction forget choke where a creamy-yellow precipitate ofsulphur is produced.H20Text box + Text Box + Text Box + Na2S203 2HCLText Box + 2NaCl SO2 SReactants ProductsThe sulphur takes a while to form and starts to turn the water cloudyafter a short time. You good dealnot tell when the reaction has s dieped so a master drawn on a piece of paper in draw can be sued to do thisexperiment. The liquid is placed on top of the cross in a beaker andit is timed how long it takes for the cross to unfreeze when viewedthrough the liquid.This experiment can be used to investigate the eff ectuate ofconcentration and temperature on rate of reaction. This is theexperiment I am firing to do because I am trying to charm how theconcentration of acid affects the rate of reaction.VariablesIn my investigation I could change* Concentration of sodium thiosulphate* Temperature of solution* Concentration of acid* Type of acid* intensity level of thiosulphate* Volume of acidI am release to change the concentration of acid.I go away keep all the other variables the same. The independent variablewill change the dependant variable- the rate of reaction.PredictionI predict that the slight concentrated the acid is then the drawn-out itwill take for the sodium thiosulphate to react.If you increase the temp, increase concentration, add a catalyst orthe hale reactant is crushed up into smaller bits then the rate ofreaction will always increase.Apparatus* Sodium thiosulphate* Hydrochloric acid* Measuring cylinder* Beaker* constitution* Pencil* Distilled water* Stop watch* Conical flask guardGoggles should be worn to prevent any of the solution from going intothe eye.Everyone should behave sensibly to prevent accidents.Collision theoryThe rate of reaction depends on how often and how hard the reactingparticles shake up with each other. The particles have to collide hardenough in order to react. The rate of reaction can be increase... ...2 and 3 only have a1second difference in time. These results are too close together andcannot be reliable.These results arent adequate for a firm conclusion as it has a fewanomalous results and on the average multiplication they dont have a largeenough gaolbreak between them e.g. 34 and 36. The experiment should becarried out more time for a more accurate result.The procedure used was suitable just produced quite unreliable resultsas the cross on the paper whitethorn have not fully disappeared when theother person was told to sojourn the timer as this is what we did. If theperson looking at the cross and observing when it disappeared changedthen the persons opinion on when it has disappeared may make it aninaccurate test so it would have to be kept the same person all thetime.If I did the experiment again I would probably take more timemeasuring out the solutions and it would probably be a better thinking forthe person observing to see when the cross can no longer be seen tohave the stop watch so they can stop it at the exact time they can nolonger see it. It could also be improved if the experiment was carriedout more times as a better average could be produced.

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