An investigation on the activation energy for the iodine clock reaction Introduction: The iodine clock reaction is a presentation of chemical kinetics‚ which are the elements that affect the rate of chemical reactions. When the two colorless solutions are incorporated together‚ no reaction can be spotted. But after a short period of time‚ the solution turns into a dark blue solution. The term rate of reaction is stated as the decrease in the concentration of one of the reactions or the increase
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INVESTIGATING THE DIFFERENT RELATIONSHIPS THAT CONCENTRATION AND TEMPERATURE HAVE ON THE RATE OF REACTION Aim To study the effect that temperature and concentration of iodide ion solution have on the rate of iodide ion I⁻ oxidation by peroxodisulphate ion S₂O₈⁻‚ creating an iodine clock reaction. Introduction I decided to choose as the topic for my investigation the rate of reaction for its vital importance in the human body. Indeed I am really interested in Biology and especially physiology and
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changing concentration: iodine clock reaction. Abstract This is an experiment to show the Iodine Clock Reaction. To create a chemical reaction to see how long it takes for solution to change to a dark blue Color. When changing the concentration of the iodide (K1) and adding distill water to make it up to 5cm³ each time. This is to see if the reaction takes less with less concentration or faster with more concentration added to the peroxodisulphatee. So with the solution made with more concentration
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Synergetic Solutions Report Virginia Grant COM/530 October 3‚ 2011 Professor Michael Ballif Synergetic Solutions Report This internal report will discuss the upcoming changes within Synergetic Solution‚ it will cover internal and external forces of change as well as factors that leaders need to consider when implementing change strategies. It will describe change models and the communication necessary to implement changes‚ following an examination of at least five resistance types . Finally
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of the initial rate of reaction. The trick‚ of course‚ is knowing when the fixed amount of product has been formed. The following examples illustrate how this can be done. Appearing blue There are a number of so called ’iodine clock’ reactions in which molecular iodine is one of the products. Probably the most famous of these is the reaction involving hydrogen peroxide and iodide
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Group: _______________________________________ 1) Five equilateral triangles‚ each with side length are arranged so they are all on the same side of a line containing one side of each. Along this line‚ the midpoint of the base of one triangle is the vertex of the next‚ as shown in the diagram below. What is the area of the region that is covered by the union of the five equilateral triangular regions? Answer: Question Attempt 1 Attempt 2 Attempt 3 1 Triangles
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session. All subjects were right handed‚ and had normal or corrected to normal vision. Subjects had experience using a computer Informed consent was provided. top of controller cube. The cursor cube was drawn to be superimposed on the bottom center of the controller cube. The target was a wireliame graphic cube that appeared on the table surface to the subject. The stereoscopic‚ head-coupled‚ graphic display was updated at 60 Hz with 1 frame lag of OPTOTRAK coordinates. Data from the OPTOTRAK
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Best Rubik’s Cube I know what you’re thinking… “Are there different kinds of Rubik’s Cube?” The answer to that question is a resounding YES! There is a variety of Rubik’s Cube of different sizes. Apart from the usual 3 x 3 x 3 Rubik’s Cube‚ there’s a 2 x 2 x 2‚ 4 x 4 x 4‚ 5x 5 x 5‚ 6 x 6 x 6‚ 7 x 7 x 7 Rubik’s Cube as well. Heck‚ there’s even a pyramid and dodecahedron shaped Rubik’s Cube. However‚ if you can’t solve the regular Rubik’s cube‚ you might have a headache trying to solve the other Rubik’s
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Synergetic Solutions Report This paper will discuss the internal and external forces of change for Synergetic Solutions. The report will show the factors that the leader in this organization needs to consider to implement a change strategy successfully and it will describe at least two change models the leader might employ. And we will evaluate the communication necessary to implement change using these models. The paper will show what kinds of resistance might the leader expect to see in Synergetic
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62 Iodine test for starch Amount of starch remaining Enzyme activity level Dark blue-black All None (0) Blue Most Low (1) Light brown Some Moderate (2) Gold None High (3) Part 1: Effect of Enzyme Concentration 1. Label five test tubes 1-5. Place 4 mL of 1 % starch in each of the first four test tubes. Place 4 mL of amylase solution in the fifth tube. Place all of the tubes in the 37°C water bath for 5 minutes. Obtain 5 clean droppers and label them 1-5. (To avoid contamination of these solutions‚ you
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