Activation Energy Lab Report

57 THE IODINATION OF ACETONE Part One: Determining the prescribe for a chemic Reaction The value of a chemical substance reception seems on several(prenominal) factors: the nature of the response, the engrossments of the reactants, the temperature, and the presence of a manageable catalyst. In this test we give first determine the ptyalise law for a response by changing approximately of the above variables and meter the appraise of the chemical response. During Part Two, we will research the relation amongst the ordinate constant and temperature to discover the activation naught for this reaction. In this experiment we will study the kinetics of the reaction in the midst of one and dimethyl ketone: O C H3C CH3 + I2(aq) H3C H+ O C CH2I + HI(aq) The roam of this reaction is found to depend on the concentration of the heat content ion (acid, HCl) as closely as the concentrations of the reactants (dimethyl ketone and iodine). The rate law for this reac tion is rate = k[acetone]m[H+]n[I2]p where k is the rate constant for the reaction and m, n, and p are the edicts of the reaction with respect to acetone, hydrogen ions (acid), and iodine, respectively. Although orders of reaction kitty be some(prenominal) value, for this lab we will be looking only for integer values for the orders of reaction (0, 1, 2 are acceptable provided not 0.5, 1.3, etc.

) The rate of the reaction can similarly be expressed as the change in the concentration of a reactant divided by the time interval: rate = - ?[ I 2 ] ?t The iodination of acetone is easily investigated beca use iodine (I2) has a deep yellow/ chocolate! -brown burnish. As the acetone is iodinated and the iodine converted to the iodide anion, this color will disappear, allowing the rate of the reaction to be easily monitored. We can study the rate of this reaction by simply making I2 the limiting reactant in a large excess of acetone and H+ ion. By criterion the time required for the sign concentration of iodine (I2) to be used up completely, the rate of the reaction can be determined by the equation rate = or simply...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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