Tuesday, May 28, 2019

Rate of reaction between Hydrochloric Acid and Calcium Carbonate Essay

Rate of opposeion between Hydrochloric Acid and Calcium CarbonateCalcium carbonate reacts with hydrochloric acid to excogitate carbon dioxidegas. One way of following the rate of reaction at which it reacts isto mea sure the volume of carbon dioxide produced at certain timeintervals during the reaction.CaCO + 2HCl CaCl + H O + CO===========================Calcium Carbonate + Hydrochloric Acid Calcium Chloride + Water+ Carbon DioxideEquipment---------Delivery tubeConical flaskHydrochloric acidCalcium carbonate chips buretBeakerElectric scalesMeasuring cylinderTubWaterElectric timerGogglesRetort standThe different factors that can affect my experiment be thetemperature, the concentration of my reactants and the clear area,also adding a catalyst. We have decided to test differentconcentrations of hydrochloric acid for our experiment because it willgive us sufficient results to concord our evidence reliable.RATE OF REACTION BETWEENHYDROCHLORIC ACID AND CALCIUM CARBONATELOW CONCENTRA TIONHIGH CONCENTRATIONI think that during our experiment, the higher the metre of acidthe quicker the rate of reaction will be, I think this because of thecollision theory. If the solution is made more concentrated, therewill be more particles in the solution. This makes collisions betweenimportant molecules more likely and will collide more often. At thebeginning of the reaction, there are lots of reactants particles (andno products). This fashion a lot of productive collisions betweenreactants. As time goes on these reactants will become less(prenominal) and less(because reactants have been turned into products), therefore lesscollisions, so the rate of reaction will slow down. If the molarity ofthe acid concentratio... ...act same size wecould use 2 chips in one experiment and render 1g then we could use 4chips in another experiment and still get 1g. This meant that thesurface area for the hydrochloric acid changed in each experiment forit to react and collide with. I could have stopped this by sieving soI would get chips that are of the same or close enough the samesurface area.Overall my results are fairly reliable, yet could be subjective tochange if better methods were available. If I was to do my experimentagain I would make sure I would do it all on the same day and maybechange the limits of the products so that the results we got could bemore accurate and we would have less absurd results like the 2.5molar experiment. However, if I did this experiment again I wouldexpect the same results and patterns that I have got apart from the2.5 molar and 3 molar experiments.

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