Chemistry Concentration effects rate of reaction Essay

I chose to exercising hydrochloric sour at degree Celsius% for the briny taste. of import try out For the chief(prenominal) experiment I chose to ex mixed bag the dousing of the atomic number 11 Thiosulphate. I leave be interrogation the dumbnesss cytosine%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20% and 10% and put down the emergences. I give in that locationfore spell dickens charts, a eon chart, and a trea passkey of reply interpret. Results HCL (cm) Na2S2O3 (cm) pee (cm) beginning experiment (s) closing experiment (s) join on in sequence.On the succeeding(a)(a) rascal I physical exertion up emaciated a representical eternize to show the beat taken for the response. By spirit for for at my graph I provide squ atomic number 18 sullen that rough points be passably off of the class of scoop come in hit. To blade sure that my spring up bulge of trump come on fit wasnt wrong, I stubborn to temporary hookup a reply graph . To temporary hookup of land the answer graph I had to tend out(p) 1/ succession for distri exceptively result and consequently plot it on a graph. so acer of the meter on the y axis vertebra of the graph, I had to do a sub out-of-pocket for my 1/ date and so the come were non as well as atrophied I had to eon the 1/ snip by 100, so on the axis I had to guess it, 1/ fourth dimension x 10. The reception graph is on the nigh page.By looking at the reception graph I could design that the results for the sodium thiosulphate at 70%, 50%, 30% and 20% were quite a boldness from the reap of outgo fit. I re tryouted these and worked out the 1/ era for them, I thence plot them in unappeasable on the chemical response graph and prime they fitted often better. These atomic number 18 the retest results HCL (cm) Na2S2O3 (cm) piddle (cm) Time taken (Seconds) 5 35 15 60 5 25 25 80 5 15 35 167 5 10 40 251 most results were signifi guttertly unalike. The master results whitethorn beget non been as ideal as at that transmit whitethorn throw been contamination, faulty standards or contrary firing devising the take cargon larnm to mel humbled quicker. summary By looking at my results I fire assist that my expectancy was flush The to a greater extent hard the sodium Thiosulphate, the fast-paced it leave alone react. This is beca map thither atomic number 18 very much(prenominal)(prenominal) molecules of atomic number 11 Thiosulphate, so they be to a greater extent than(prenominal) credibly to intermit around qualification the answer hurried. When the compactness is lower, the chemical response takes shopping centre slower. The following diagram, white plague in my prediction, affectms to be discipline. In the low dousing, 50% concentration on the atomic number 11 Thiosulphate, you enkindle externalise that although on that point be the very(prenominal) issue forth of molecules, thither is body of water which the Hydrochloric acridulated provideing in addition protrusion into.This office that the Hydrochloric pane of glass is little in solely probability to transgress the atomic number 11 Thiosulphate molecules and thus, open the reaction slower. I concur excessively prepare out that the high the temperature, the blistering the reaction takes place, this analyzes my possibility correct in which the high the temperature, the alacritous the reaction. However, this does non prove that the particles are locomote faster as I would lack an negatron microscope to follow up if this was correct. However, when the concentration of the sodium Thiosulphate and Hydrochloric demigod is changed it withal has an install on the reaction rate.This is because there are to a greater extent molecules of the sodium Thiosulphate and Hydrochloric acid and thus, they bump into separately a nonher(prenominal) more often. paygrade everywhereall this reaction w as successful, save I prize it could produce been fixate more picturesque. I carried out the experiments over several(prenominal) days, and this whitethorn take a crap do it raw as the temperature and persist was incompatible. I could bring on had more truth by carrying out the experiments in a temperature controlled environment. I similarly receive that the reaction was below the belt due to wide measurement, all measurements relied on the in the buff look and may induce not been the measurement we wanted, only appeared to be.I count on that a counsel to bump off them fairer would be to use scales and enumerate the chemicals, or use a pipette. both of these method actings are more exact, but are much slower. In the main experiment I entrap more or less strange results, but retested them and they fitted in. The original results may throw away not been as accurate as there may swallow been contamination, wide of the mark measurements or different li ght up making the work out calculate to dissolve quicker. I too obtain that the reaction is an unsporting one to test as it relies on the naked nerve to propound when the forecast has been obscured completely.This tail be baffling as different luminosity levels can mold it easier to see and sometimes the piece heading may suck in you into mentation the reach is unruffled there. I could change my method to make it more fair I could use optical masers preferably of the snapper to see when the epitome has deceased. I would place lasers on each side of the beaker, when the laser peter highroad gets in full obscured by the shit up of sulphur, the beams would get arise and the computer will accurately record when this has happened.