IODINE CLOCK COURSEWORK EXAMPLE

  • June 26, 2019

Give a valid conclusion to this experiment with an explanation. There is no possible way to change the speed of reaction as it is a human flaw, therefore using a more precise instrument will be more appropriate for the lab. Carefully swirl the reaction mixture in the beaker from time to time. Sorry, but copying text is forbidden on this website. This result is backs up the collision theory1 that states in order to show a positive increase in the rate of reaction, the amount of collision must also increase.

Sorry, but downloading is forbidden on this website. We’ll occasionally send you account related and promo emails. Let us create the best one for you! During the lab, the temperature of the room increased resulting in a faster reaction changing the correlation between the rate of reaction and the volume usage. We will write a custom essay sample on. Eric from Graduateway Hi there, would you like to get an essay? Describe any sources of error in your experiment.

Let us create the best one for you! We will write a custom essay sample on Iodine Clock Reaction: Repeat steps 2 to 4 with each of the remaining solutions Note: Measure 5 cm3 of hydrogen peroxide into a syringe.

iodine clock coursework example

Eric from Graduateway Hi there, would you like to get an essay? During the lab, the temperature of the room increased resulting in a faster reaction changing the correlation between the rate of reaction and the volume usage.

Between every test, the starch used should be a fresh batch or to make sure to preserve the starch used for the experiment. A way to make the measurements more precise is to use the same error margins on all instruments thus allowing a constant error margin. Sorry, but downloading is forbidden on this website. What is your topic? The graph on the trend line shows a linear correlation showing that the increase amount of volume of potassium iodide added to the mixture will increase the rate of reaction.

  IHPME THESIS PROPOSAL

There is no oidine way to change the speed of reaction as it is a human flaw, therefore using a more precise instrument will be more appropriate for the lab. Give a valid conclusion to this experiment with an explanation. This result is backs up the collision theory1 that states in order to show a positive exqmple in the rate of reaction, the amount of collision must also increase.

Iodine Clock Reaction: Concentration Effect Essay Example | Graduateway

The aim of this experiment is to find the effect of varying the concentration of iodide ions clokc the rate of reaction between hydrogen peroxide and an acidified solution of potassium iodide. There are also random errors such as the change of temperature. Plot a graph of rate against volume of potassium iodide. Let me help you.

We’ll occasionally send you account related and promo emails. If you need this or any other sample, we can send it to you via email.

iodine clock coursework example

Add it to mixture 1 as quickly as possible and at the same time start the timer. Describe any sources of error in your experiment.

Apparatus and Chemicals selection of syringes cm3 glass beakers white tile timer distilled water 1 mol dm? Error Change in Temperature Problem The room temperature increased as the lab was conducted affecting the lab speeding up the reaction when the temperature increased. Solutions Keep the temperature of the room constant by turning of the aircon before the lab starts, and checking the room temperature as the lab is being done 1 BBC GCSE Bitesize: As seen in the graph, the line of best fit does not successful go through the first point 5,0.

  ESSAY OF CARMEN GUERRERO NAKPIL

In order to to increase to amount of collision, having more volume of potassium iodide increasing the concentration there is more chance of collision resulting in a faster rate of reaction. If there is too much of the concentration added to the mixture, the rate of reaction will be faster and if too little of the potassium iodide is added, it reacts at a slower place.

As seen in the graph there is a positive correlation between the volume Concentration of the potassium iodide and the rate or reaction.

Iodine Clock Reaction: Concentration Effect Essay

Measurement Since it is not possible to eliminate the error margins of an instrument, it would be wiser to increase the precision of the instrument instead. Both the sulfuric acid and iosine peroxide solutions irritate the eyes.

iodine clock coursework example

Haven’t found the Essay You Want? Place the beaker containing the mixture 1 on the white tile. Overall, these systematics and random errors do not influence the majority of the lab result as it continues to back up the collision theory and highlights the relationship between the rate of reaction and the concentration of the potassium iodide.

Using syringes make up the following mixtures in five dry cm3 beakers. If any chemical splashes on your skin, wash it off immediately. By clicking “SEND”, you agree to our terms of service and privacy policy.