Reham Al Sultan Prof. Hirul‚ Term Paper 4/25/2014 Thyroid Disease Thyroid is a small gland found at the base of your neck‚ just below your Adam ’s apple. The thyroid produces two main hormones called T3 and T4. These hormones travel in your blood to all parts of your body. The thyroid hormones control the rate of many activities in your body. These include how fast you burn calories and how fast your heart beats. All of these activities together are known as your body ’s metabolism. A thyroid
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your mixture‚ discuss the possibilities for the mixture. The starch and mixture 2 are both similar because they both did not penetrate when the vinegar was added; when the water was added the laid on top and did not penetrate completely; when the iodine solution was added to both they it turned black. Mix 1 would be substances 2 and 4; Mix 2 would be 1 and 5. Compare
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Thermometer Spotting tiles Pipette Water baths (at different temperatures) Iodine Measuring cylinder Method: 1. Collect equipment and set up as shown in diagram. 2. Fill a boiling tube with 10cm of starch and another with 5cm of enzyme. 3. Place both in a water bath at 20 degrees. 4. Wait until both test tubes reach equilibrium‚ test this with a thermometer. 5. Fill 30 spots on the spotting tile with 2 droplets of iodine. 30 spots are enough for 15 minutes‚ which is the maximum time the reaction
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The Kinetics of the acid-catalyzed iodination of propanone Raw Data: Solution A:Propanone 2M Solution B: Iodine 0.005M Solution C: Sulfuric acid 1M Solution D: Distilled water Table 1 Experiment Volume of solution A ±0.05 (cm3) Volume of solution B ±0.05 (cm3) Volume of solution C ±0.05 (cm3) Volume of solution D ±0.05 (cm3) Total Volume ±0.2 (cm3) 1 2 2 2 4 10 2 4 2 2 2 10 3 6 2 2 0 10 4 2 1 2 5 10 5 2 0.5 2 5.5 10 6 2 2 4 2 10 7 2 2 6 0 10 Table 2 Experiment Time for yellow color to disappear
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releasing carbon dioxide. Osmosis is a special type of diffusion‚ which occurs when water is diffused across the membrane. This can be affected by how hydrophilic a solute is on either side of the membrane. The diffusion of glucose‚ starch‚ and iodine was observed when the solutes went from a higher concentration of their individual solute to a lower concentration diffusing threw pores in the dialysis bag. The experiment sought to find out which solutes would diffuse threw the pores of the dialysis
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Introduction The student nurse chose this case study to discover more about the disease process and how to impart more therapeutic interventions that would lend a hand to the patient to recover better as soon as possible. Cast an eye over more facts about the disease and how significant each signs and symptoms the patient is manifesting and its effect to the body of the patient. This case abets the student nurse to obtain appropriate knowledge as well as gain understanding that will be used further
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Concentration of Sodium Chloride and the Rate of Reaction of Enzyme Amylase Research Question: How will changing the percentage of sodium chloride concentration affect the rate of reaction of enzyme amylase‚ measured using the absorbance of starch and iodine with a spectrophotometer. Introduction: Amylase is an enzyme that is involved in the human digestive process. Found in both the human pancreas and the human saliva‚ amylase breaks down starch into sugar so that large molecules can be easily digested1
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prepared by dissolving 0.10 gram in 100 mL of water. The Eo’ value for this indicator is 0.53V. (n = 2) What is the useful voltage range of this indicator? (B) Starch indicators are useful when iodine titrations (organic oxidations) are performed. Why is it considered an advantage in these titrations to have iodine as the titrant instead of the analyte? 3. An environmental chemist is going to field test the chemical oxygen demand factor for a stream in Yellowstone Park.
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buret‚ 10mL of HCL‚ and 20mL of distilled water. Once we had those three in the gradated cylinder we put 10mL of iodine in a test tube and we placed both in the 500 mL beaker with thermometers in each solution to ensure that they were all the same temperature when we added the iodine. As soon as all the solutions reached the desired temperature (22 degrees Celsius) we poured the iodine into the graduated cylinder and started timing the reaction. 6. As soon as the reaction stopped‚ we stopped
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1. Introduction: This lab focused on showing the reaction that takes place between zinc and iodine using only deionized water instead of acetic acid (or vinegar) as we did in the previous lab by adding acetic acid to zinc iodide. The purpose of this lab was to see how water created the reaction and another compound or precipitate. Focus Question: Zn(OH)2 was the product when zinc and iodine were reacted without the presence of acetic acid in the water. Confidence Report: I am confident that
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