IODINE CLOCK METHOD COURSEWORK

The experiment should have been done both ways to have the most accurate results. As well another way that the procedure can be improved upon is to perform the lab like a titration lab using a burette, flask and the indicator. Sample calculation for the rate constant, k for Rate 1 Again C1 stays the same for all calculations. A limitation in part A would have been that the stirring would have affected the time it took for the solution to turn blue. Please help us feed and educate children by uploading your old homework! Also some solutions turned blue right away and others took a while so they could be seen by the human eye. Conclusions that can be drawn from the data is that when the concentration of the potassium iodate solution was increased the rate of reaction decreased.

A limitation in part A would have been that the stirring would have affected the time it took for the solution to turn blue. All throughout the lab the assumption that is made throughout the lab is that the bisulfate ion has a reaction order of zero. Also because the assumption was made that the reaction order of the bisulfate was zero because it was constant throughout may have affected the results as well. Some of the tubes may have gotten more stirred than others and this would have caused an inaccuracy in the times that were collected. Conclusions that can be drawn from the data is that when the concentration of the potassium iodate solution was increased the rate of reaction decreased.

Schoolworkhelper Editorial Team https: As well another way that the procedure can be improved upon is to perform the lab like a titration lab using a burette, flask and the indicator. In conclusion, from part A the order of reaction of the iodate was found to be 2. Lastly a limitation in part B is that a final temperature for the solution could not be measured because of all of the surrounding influences such as coursweork the tube would have transferred heat to the solution.

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The Iodine Clock Investigation – GCSE Science – Marked by

All throughout the lab the assumption that is made throughout the lab is that the bisulfate ion has a reaction order of zero. The order of reaction with respect to the iodate ion, mmust be determined for the following rate. Sample calculation for the rate constant, k for Rate 1 Again C1 stays the same for all calculations.

It is assumed that the order of reaction with respect to the bisulfate is zero, thus cllck is zero. Iodin that can be drawn from the data is that when the concentration of the potassium iodate solution was increased the rate of reaction decreased.

Iodine Clock Reaction Lab Answers – SchoolWorkHelper

In part B coureework activation energy was found to be The slope represents the order of reaction with regards to the iodate, but the actual value is 2. Some of the tubes may have gotten more stirred than others and this would have caused an inaccuracy in the times that were collected.

iodine clock method coursework

The experiment should have been done both ways to have the most accurate results. Also because the assumption was made that the reaction order of the bisulfate was zero because it was constant throughout may have affected the results as well.

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The final rate law determined was:. This assumption will be further evaluated in the evaluation of the weaknesses and limitations.

In this lab, double replacement reactions between compounds were done in order to determine the equation and description of a new substance Better collection techniques such as spectrometry should have been used because then when ion changed colour it would be detected right away.

Answers Clock Iodine lab Reaction.

iodine clock method coursework

Also, when the tube was taken out the bath tub the room temperature immediately affected it, constantly cokrsework the final reaction. Iodine Clock Reaction Lab Answers.

A-Level Investigation – Rates of Reaction – The Iodine Clock

jodine It only takes seconds! Another relationship that can be seen between the rate constant and the temperature is that as the temperature increased the rate constant increased as well.

iodine clock method coursework

Instead of the iodate ion concentration being changed the concentration of the bisulfate could have been changed by making it the limiting reactant in the balanced equations. Also some solutions turned blue right away and others took a while so they could be seen by the human eye.

Please help us feed and educate children by uploading your old homework! voursework

We will then predict from our results the correc A limitation in part A would have been that the stirring would have affected the time it took for the solution to turn blue.