IODINE CLOCK METHOD COURSEWORK

Also some solutions turned blue right away and others took a while so they could be seen by the human eye. The experiment should have been done both ways to have the most accurate results. 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. 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. 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. All throughout the lab the assumption that is made throughout the lab is that the bisulfate ion has a reaction order of zero. A limitation in part A would have been that the stirring would have affected the time it took for the solution to turn blue.

Schoolworkhelper Editorial Team https: 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. The experiment should have been done both ways to have the most accurate results. 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. The final rate law determined was:. A limitation in part A would have been that the stirring would have affected the time it took for the solution to turn blue. 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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iodine clock method coursework

Please help us feed and educate children by uploading your old homework! In conclusion, from part A the order of reaction of the iodate was found to be 2.

iodine clock method coursework

Also, when the tube was taken out the bath tub the room temperature immediately affected it, constantly changing the final reaction. The experiment should have been done both ways to have the most accurate results. Schoolworkhelper Editorial Team https: The slope represents the order of reaction with regards to the iodate, but the actual value is 2.

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.

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

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. Better collection techniques such as spectrometry should have been used because then when ion changed colour it would be detected right away.

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.

In part B the activation energy was found to be Answers Clock Iodine lab Reaction. 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. All throughout the lab the assumption that is made throughout the lab is that the bisulfate ion has a reaction order of zero. Iodine Clock Reaction Lab Answers. It only takes seconds!

Iodine Clock Reaction Lab Answers – SchoolWorkHelper

A limitation in part A would have been that the stirring would have affected the time it took for the solution to turn blue. The final rate law determined was:.

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The order of reaction with respect to the iodate ion, mmust be determined for the following rate.

It is assumed that the order of reaction with respect to the bisulfate is zero, thus n is zero. 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 holding the tube would have transferred heat to the solution.

This assumption will be further evaluated in the evaluation of the weaknesses and limitations. Sample calculation for the rate constant, k for Rate 1 Again C1 stays the same for all calculations.

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. Also some solutions turned blue right away and others took a while so they could be seen by the human eye. We will then predict from our results the correc In this lab, double replacement reactions iodibe compounds were done in order to determine courseork equation and description of a new substance Some of the tubes may have gotten more stirred than others and this would have caused an inaccuracy in the times that were collected.