Factors of a reaction lab Essay

assumptionAccording to the collision theory, the array of a reaction depends on the frequency of collisions mingled with reacting particles. The more frequent the collisions, the hurrying the direct of the reaction. However, in order for the collisions to be effective, the particles essential(prenominal) collide with sufficient energy (activation energy). Furthermore, the particles must collide with the proper orientation. The aim of this essaying ground is to increase how often collisions occur. Theoretic bothy, we should be fitting to achieve this by increasing the HCl dumbness. However, we go out instead decrease the HCl concentration dependable becaexercising its easier by diluting it with water. We thusly cry that by decreasing the HCl concentration, it should take eight-day for the reaction to produce the pre memorized amounts of henry spoil that we are observing.VariablesIndependent- the concentration of HClDependent- the rate of the reactionControlled- Size of examen thermionic valveSyringe typeTimer intensity of ZnVolume of HClSize of the b allyhooControlling Variablessize of shew thermionic valve- we utilize the same testing tube for almost of the trials spray type- we utilize the same spray for all the trials horologe- we used the same magaziner for all the trials draw of zn- we kept the mass of zn constant 1.00gsize of the stopper- we used the same stopperProcedure1. captivate a test tube wrench, a test tube, a stopper that fits snuggly into the test tube and a syringe.2. Place the test tube into the test tube rack and attach the syringe to the test tube.3. utilise an electric balance, incur a sample of powdered Zn that weighs 1.00 g exactly.4. displace the 1.00g sample of powdered Zn into the test tube.5. Grab two beakers. Fill champion with HCl and the other with non-di fluided water. BE SURE TO distinguish THE BEAKERS APPROPRIATELY6. Using a 10ml calibrated cylinder and pipette, mea genuine out 10 ml of HCl.7 . Pour the HCl into the test tube, pronto cork the test tube with the stopper, and take away slightly on the syringes end to make sure the total heat foul up go out flow through.8. phonograph recording the how long it takes for the marker on the syringe to reach, 1, 2, 3, 4, and 5 cm3.9. Repeat with HCl concentrations of 0.8 jettye dm-3 and 06 groine dm-3.10. Repeat steps 3-9 a irregular time in order to obtain a second trial.Data sight and touchRaw Data put backHydrochloric deadly, 1.0 mole dm-3Time interpreted for identical intensity level of atomic number 1 shoot a line to be produced/sVolume of atomic number 1 gas produced/cm3Observations Zn clumps together at female genitalia of test tube Bubbles are produced No longer powder Nothing happens for a while and then all of a sudden theres want this outward burst of energy which results in small intervals btw the given volumes producedData ProcessingOverviewI will first determine the average time it took for the variant HCl concentration to react and produce the given volumes of hydrogen gas. Next I will orchestrate the standard deviation for each stage of trials to determine the accuracy of the average. Finally, I will graph the average times apply a scatter.Sample Calculation total of different trials for time taken for 1cm3 of hydrogen gas to be produced with 1.0 mol dm-3 of HCl(118 + 123)/2 = 120.5sHydrochloric astringent, 1 mol dm-3Volume of hydrogen gas produced/cm3 just time taken for corresponding volume of hydrogen gas to be produced/s1120.52152.03190.54227.05274.0Hydrochloric acid, 0.8 mol dm-3Volume of hydrogen gas produced/cm3Average time taken for corresponding volume of hydrogen gas to be produced/s1137.02226.03330.04439.55552.5Hydrochloric acid, 0.6 mol dm-3Volume of hydrogen gas produced/cm3Average time taken for corresponding volume of hydrogen gas to be produced/s1202.02209.03242.04309.55382.5 beat deviations of the averages were determined by using the follower s formula in a Microsoft outgo programStandard Deviation for different HCl acid concentrationsHCl acid concentration/mol dm-3Standard DeviationAverage time vs. Volume of hydrogen gas produced expiration and EvaluationConclusion Hydrochloric acid, 1 mol dm-3 concentration, the highest concentration used in this experiment produced the given volumes of hydrogen gas the double-quick out of all three HCl concentrations. Hydrochloric acid of 0.8 mol dm-3 concentration did produce 1 cm3 of hydrogen gas faster than hydrochloric acid of 0.6 mol dm-3 as predicted. Hydrochloric acid of 0.6 mol dm-3 concentration produced hydrogen gas faster than hydrogen gas of 0.8 mol dm-3.LimitationsSuggestions for ameliorationSome of the Zn powder got stuck to the array of the test tube as we poured it into the test tube.mayhap use a wheat or something exchangeable that to make sure the Zn gets to the bottom of the test tube. And like blow into the straw (softly) to ensure that no(prenominal) of the Zn gets stuck to the inside of the straw.We didnt use the same syringe for all the trials because we were nerve-racking to get all the trials in on the same day.Use the same syringe for all trials.We didnt get all the trials in on the same day. I think it took us three classes. As a result, each day we were functional in different room temperatures. prink ourselves better so that we get all the trials in on the same day.We couldnt dry the test tube correctly. distributively time we dried it there was still water at the bottom of the tube.Maybe like attach a write up towel to a stirrer and sell it around inside the test tube to dry it out.Zn is impure. As a result, the HCl acid could be reacting as surface with whatever impurities present are thus slowing down the reaction, perhaps.