solution of amylase made of 0.3g of amylase added to 15ml of water‚ and a 0.5% solution of amylase made of 0.75g of amylase to 15ml of water were created. A 0.25% starch solution was also created‚ and 3ml was added to each of the 4 test tubes. 1 drop of iodine was added to each test tube. 4ml of the 1% solution was added to the first test tube‚ 4ml of the 2% solution was added to the second test tube‚ 4ml of the of the 0.5% solution was added to the third test tube and 4ml of water was added to the fourth
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hyperthyroidism‚ thyroid cancer‚ and blood disorders. 6. Common isotopes that are used in nuclear imaging include: fluorine-18‚ gallium-67‚ krypton-81m‚ rubidium-82‚ nitrogen-13‚ technetium-99m‚ indium-111‚ iodine-123 (pictured above)‚ xenon-133‚ and thallium-201. For therapy‚ yttrium-90 and iodine-131 are commonly used. Many radioisotopes are made in nuclear reactors‚ some in cyclotrons. Generally neutron-rich ones need to be made in reactors‚ neutron-depleted ones are made in cyclotrons. Nuclear
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Introduction * Properties And Uses Of Fluorine * Fluoridation Of Water * Chlorofluorocarbons * Chlorine * Introduction * Uses Of Chlorine * Chlorine And Organic Compounds * Bromine * Introduction * Halogen Lamps * Iodine * Introduction * Uses And Applications * Astatine * Introduction * Uses And Applications Introduction & daily life applications of halogens INTRODUCTION: * Table salt‚ bleach‚ fluoride in toothpaste‚ chlorine in swimming
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quickly. Discussion: In this experiment a Grignard reagent (Figure 3) was prepared out of 4-Bromo-N‚N-dimethylaniline and reacted under reflux with magnesium‚ tetrahydrofuran‚ and an iodine crystal with magnetic
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stain 5. Gram’s Iodine Solution 6. Ethyl Alcohol 7. Safranin Solution 8. Paper towels 9. Water 10. Bunsen Burner (Lighter will suffice) 11. Microscope 1. Prepare and heat-fix smears. 2. Stain the slides as follows: a. Flood the crystal violet for one minute. b. Pour off excess dye and wash gently in tap water and drain the slide against a paper towel. c. Expose the smears to Gram’s iodine for one minute by washing with iodine‚ then adding more iodine and leaving it
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basic. This is because I know that the more acidic 7-Up and white grape juice have been known to rot and corrode teeth. The second experiment we conducted was to test for chloride ions and starch. We did this by adding drops of silver nitrate and iodine to Sodium Chloride‚ starch and distilled water. Our hypothesis for this experiment was that the silver nitrate would react in some way with the sodium chloride and the starch‚ but not with the water. The third experiment we conducted was to test
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Introduction This practical experiment was performed in an attempt to observe how enzymes (starch phosphorylase in particular) are affected by varying its temperature before introducing it to the substrate it will be reacting with. A catalyst (enzyme) is a substance that changes the rate of a reaction; for a reaction to take place at all‚ the enzyme must first come into contact with the substrate. Enzymes are subject to a number of factors which effect how fast they can cause a reaction with a substrate;
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Introduction Deficiencies in three micronutrients — iodine‚ iron‚ and vitamin A — are widespread affecting more than a third of the world ’s population. Individuals and families suffer serious consequences including learning disabilities‚ impaired work capacity‚ illness‚ and death. They could waste as much as 5% of gross domestic product (GDP). India ’s life expectancy has more than doubled‚ and infant mortality‚ halved in the last fifty years. India is knocking the door for a permanent position
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The Fukushima Nuclear Power Plant accident caused ecological problems. Abstract The Fukushima nuclear accident triggered a large-scale nuclear leak‚ which has had an immeasurable impact on the global ecological environment. This article addresses‚ in depth‚ features of the Fukushima Nuclear Power Plant accident: during the incident‚ the impact of the incident‚ and aspects of the aftermath. Through an analysis of the Fukushima Nuclear Power Plant accident‚ certain referential and significant
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PREPARATION OF TIN TETRAIODIDE 09/06/2012 Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the recovery
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