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Home > GCSE > Chemistry > To determine the activation energy of the reaction between bromate ion and bromate(V) ion in acid solution. To determine the activation energy of the reaction between bromate ion and bromate(V) ion in acid solution.You can download this essay for free. All you need to do is register and submit at least one of your essays to us. Or you can purchase this essay for just $2 instantly without registering
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| Words: 198 | Submitted: 31-Mar-2011 This is what the first 2 pages of the essay look like   DescriptionTo determine the activation energy of the reaction between bromate ion and bromate(V) ion in acid solution.PreviewObjective:To determine the activation energy of the reaction between bromate ion and bromate(V) ion in acid solution. Discussion 3Br2(aq) + C6H5OH (aq) à C6H5Br3OH(s) +3H+(aq) + 3Br-(aq) Methyl red was used because the solutions are colourless, the end point cannot be determined. However, using methyl red as indicator to give some color to the solution, at the end point the solution was bleached from red to colorless. No, as the rate of reaction increase directly proportional to the temperature, at the temperature=80oC, the rate is so fast that tme interval connot be measured. It is because the time noted is the time when the solution has just been decolourised, therefore, how far the reaction has proceeded is not a factor. From Arrhenius equation, we have k = Ae-Ea/RT, where A is Arrhenius constant. a) Yes, as all concentration terms have been kept constant. Therefore, the rate only varies as k, and the rate is directly proportional to 1/t & varies as k in the rate equation. We can substitute k by 1/t. b) By taking natural logarithm of k = Ae-Ea/RT, we have: ln k = (- Ea/RT)+ ln A Download this essay in full now!Just upload at one of your essays to our database and instantly download your selection! Registration takes secondsOr you can download this essay for $2 immediately without registeringComments and reviewsReviews are written by members who have downloaded the essay No comments yet. If you download the essay you can review it afterwards. |
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