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

The activation Energy of Bromide ion and Bromate ionTo Determine the Activation Energy of the Reaction between Bromideion and Bromate (V) ion in Acid SolutionObjectivesBy reacting Potassium Bromide and Potassium Bromate in the acidsolution in varies temperature, we can then determine the ActivationEnergy of the response in different temperature through the equationIMAGE. Questions1. Give an equation for the reaction between phenol and bromine.2. What is the use of methyl orange in this experiment?The methyl orange is used as an indicator for the reaction. Brominewill be produces during the reaction and it will react with phenolrapidly. Once either the phenol is used up, further bromine produced willbleach the methyl orange immediately. So the deem of the reaction canbe calculated from the clipping for the indicator to be decolorized.3. Based on your results, is it advisable to perform the experiment athigh temperatures such as 80?From the above 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 light(a) for us to record.4. Why is it not inevitable to know how far the reaction has proceededat the point where the methyl red is decolourized?In the experiment, the number of mole and the megabyte of eachchemicals used are the same. And the appearance of the pink colouronly determines that there 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 reach the point thedecolourization occurs at different temperature.5. The Arrhenius equation can be represented 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 due to the constantconcentration of the reactants. Also the rate constant k isproportional to the rate of the reaction when the temperature changes.