Thursday, February 28, 2019
Chemistry Laboratory Report Essay
Title Factors affecting reaction enume valuatesProcedure A Effect of ConcentrationAim To investigate how the stringency of a reactant affects the rate of reaction.Hypothesis The more concentrated the reactant, the faster the rate of reaction.Materials 2M hydrochloric acid solution, magnesium wire, distilled water, 4 test-tubes, measuringcylinder.Procedure1)10mL 2M hydrochloric acid solution is poured into a test-tube using a measuring cylinder.2)A 3cm length of magnesium wire is added to the acid, and the stop watch is started simultaneously. The time it takes for the magnesium to disappear into solution is recorded. This time is recorded in the results table.3)The test-tube is rinsed thoroughly and step 2 is repeated using 8mL acid complicated with 2mL water.4)This is repeated for each acid-water mixture, as shown in Table 1.Sources of error in this experimentThe dilution process of the hydrochloric acid is very crude. This means that the reaction rate will be affected, but not by a lot.The sizing of the magnesium wire is not equal. This will also affect the consistence of the results, but again, not by a lot.The recording of the time may not be absolutely accurate.The experiment could be improved by reducing the sources of error i.e. handling the equipment as accurately as possible. finding The higher the concentration of the reactant, the higher the rate of reaction.