Wednesday, July 17, 2013

Chemistry Laboratory Report: Factors affecting reaction rates

Title: Factors affecting answer governsProcedure A: Effect of ConcentrationAim: To investigate how the submerging of a reactant affects the rate of response. dead reckoning: The much concentrated the reactant, the fast-paced the rate of reaction. Materials: 2M hydrochloric acrimonious termination, atomic number 12 fit, distilled piss, 4 test-tubes, measuringcylinder. Procedure:1)10mL 2M hydrochloric dose resolvent is poured into a test-tube using a measuring cylinder. 2)A 3cm aloofness of atomic number 12 wire is added to the panelling, and the stopwatch is started simultaneously. The cartridge holder it takes for the magnesium to leave into solution is recorded. This time is recorded in the results table. 3)The test-tube is rinsed thoroughly and flavor 2 is perennial using 8mL social disease mixed with 2mL water. 4)This is repeated for from each one acidic-water mixture, as shown in duck 1. Results:Table 1Volume of HCl(ml)Volume of water (mL)Time taken (s)100418252736664120Calculations:Table 2Volume of HCl(ml)Volume of water (mL)Concentration (mol/L)1002821.6731.4641.2Discussions:The reaction between magnesium and hydrochloric acid:Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)Increasing the concentration of the hydrochloric acid will growth its solubility. The high(prenominal) concentration of acid self-confidence there ar more reactants per molecule, making the reaction of the magnesium more effective.
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Sources of fault in this experiment:?The dilution process of the hydrochloric acid is very crude. This means that the reaction rate will be affected, only when non by a lot. ?The size of the magnesium wire is not equal. This will also affect the consistency of the results, but again, not by a lot. ?The recording of the time whitethorn not be suddenly accurate. The experiment could be improve by reducing the sources of fault i.e. handling the equipment as accurately as possible. Conclusion: The higher the concentration of the reactant, the higher the rate of reaction. If you wishing to get a full essay, order it on our website: Orderessay

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