Tuesday, March 26, 2019
The Activation Energy of Bromide ion and Bromate ion :: Chemical Reactions Reaction Rates Essays
The Activation Energy of Bromide ion and brominate ionTo Determine the Activation Energy of the Reaction between Bromideion and bromate (V) ion in Acid SolutionObjectivesBy reacting special K Bromide and Potassium Bromate in the acidsolution in varies temperature, we green goddess consequently determine the ActivationEnergy of the response in different temperature by the equationIMAGE. Questions1. Give an equation for the chemical reaction between phenol and bromine.2. What is the drug abuse of methyl orange in this experiment?The methyl orange is employ as an indicator for the reaction. Bromine forget be produces during the reaction and it will react with phenolrapidly. Once all the phenol is used up, hike bromine produced willbleach the methyl orange immediately. So the pose 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 at graduate(prenominal ) 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 simple for us to record.4. Why is it not necessary to know how far the reaction has proceededat the point where the methyl red is de act uponized?In the experiment, the number of inguen and the molarity 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 delineate 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 unremittingconcentration of the react ants. Also the rate constant k isproportional to the rate of the reaction when the temperature changes.
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