eriment 4 R Laites of R ates of Reaction: a Clock Reaction Objectives To determi

Question

eriment 4 R Laites of R ates of Reaction: a Clock Reaction Objectives To determine the overall order of a reaction e To determine the effects of concentration, temperature and catalyst on a reaction rate Prior Reading Chemistry The Central Science Related topics in Chapter 14 Introduction Kinetics represents the study of the rates of chemical reactions. The rate at which reactants are converted into products is dependent upon many factors such as the nature of the reaction, the concentration of reactants, the temperature, and the presence of a catalyst. For any given reaction, such as the generic reaction: Experiment 14-1

Explanation / Answer

The complete table is

Rate = [I-]m[BrO3-]n[H+]p

Rate 1 / Rate 2 = [I-]m[BrO3-]n[H+]p / [I-]m[BrO3-]n[H+]p

8.85 / 15.38 = [0.0033]m / [0.0067]m

m = 1

simialrly we can calculat the value sof n and p

Mixture Time 1000 / t Reactant concentration temperature I- BrO3- H+ 1 113 8.849558 0.003333 0.02 0.05 22.1 2 65 15.38462 0.006667 0.02 0.05 22.7 3 61 16.39344 0.005 0.026667 0.033333 22.3 4 38 26.31579 0.005 0.013333 0.066667 22.4 5 215 4.651163 0.004444 0.01 0.075 22.7

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