CHEM-C126 04. Kinetics Report (1).docx - Rachael Rendell...

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Rachael RendellC126 Experimental Chemistry IISection 9131IUPUIJuly 10, 2017.04 Kinetics ReportThe study of reaction rates is called kinetics. Scientists study factors that influence therates of various reactions in order to get an understanding of how the reaction is occurring and todetermine means by which the reaction rate may be controlled. One may want to make certainreactions go faster, like the decomposition of waste materials or the growth of hair. One may alsowish to slow certain reactions, like the rusting of iron on a car or the spoilage of food. Scientistsspend considerable time and money attempting to control reaction rates. In order to understandmore about reaction rates, it is important to have a general understanding of the collision theoryof chemical reactions. A chemical reaction results from the effective collision of reactantmolecules. Molecules are in constant motion and colliding all the time. In an effective collision,the molecules collide with the proper orientation and with some minimum energy, which isdetermined by the mass and speed of the reactant molecules. Some bonds are broken and otherbonds are reformed. Hence, one can affect the reaction rate by finding ways to make effectivecollisions more frequent.For Part A of the experiment, the transmittance of the blue dye was first measured.Thiswas measured in order to find the absorbance using the equationA=LOG(100/%T)where A is

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