The Activation Energy of Bromide ion and Bromate ion :: Chemical Reactions Reaction Rates Essays

The activating Energy of Bromide ion and Bromate ionTo Determine the activation Energy of the Reaction between Bromideion and Bromate (V) ion in window pane SolutionObjectivesBy reacting Potassium Bromide and Potassium Bromate in the acidsolution in varies temperature, we provoke then determine the ActivationEnergy of the reaction in different temperature through the equationIMAGE. Questions1. confuse an equation for the reaction between phenylic acid and bromine.2. What is the use of methyl chromatic in this experiment?The methyl orange is used as an index for the reaction. Bromine leave alone be produces during the reaction and it will react with phenolrapidly. Once all the phenol is used up, further bromine produced willbleach the methyl orange immediately. So the rate of the reaction canbe calculated from the time for the indicator to be decolorized.3. Based on your results, is it advisable to perform the experiment athigh temperatures such as 8 0?From the to a higher place results, the time of the reaction is shorter as theexperiment temperature increase. So it is not advisable to perform theexperiment at high temperatures as the time of reaction is too short,it is not easy for us to record.4. why is it not needed to know how far the reaction has proceededat the smirch where the methyl red is decolourized?In the experiment, the number of mole and the molarity of eachchemicals used are the same. And the appearance of the pink colouronly determines that on that point are some content of the reaction hasprocessed. As the result, it is only necessary for us to compare thetime required for the reaction mixture to go the point thedecolourization occurs at different temperature.5. The Arrhenius equation can be delineated as(a) Can substitute k in this equation? why?Can substitute k in this equation. As in the above experiment,the initial rate can be represented by overdue to the constantconcentration of the reactants. Also the rate constant k isproportional to the rate of the reaction when the temperature changes.