oxidizing solution using the iodine/ thiosulphate titration where the reducing solution is potassium iodate solution and the oxidizing solution is sodium thiosulphate solution. Potassium iodate solution which is an oxidizing agent is added into an excess solution of acidified potassium iodide. This reaction will release iodine. Potassium iodide is acidified with sulphuric acid and the iodine released quickly titrated with sodium thiosulphate until it become light yellow. The iodine then detected with starch
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Vitamin C (ascorbic acid) is an antioxidant. The amount of vitamin C content in food can be found out by titrating with an oxidising agent‚ e.g. iodine. In the reaction‚ vitamin C is oxidised‚ while iodine is reduced to iodide ions. The endpoint is determined by the formation of blue-black starch-iodine complex when all vitamin C is oxidised and excess iodine is free to react with the starch solution added as indicator. Introduction Vitamin C is an important component of a healthy diet. A well-balanced
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mass of ascorbic acid in the tablet. As iodine is a weak oxidizing agent used mainly for the determination of strong reducing agents‚ ascorbic acid C6H8O6 (aq) can be rapidly and quantitatively oxidized by iodine in acidic condition as shown in the following equation: I2(aq) + C6H8O6 (aq) → C6H6O6 (aq) + 2H+ (aq) + 2I- (aq) This method involves the direct titration of the ascorbic acid with a standard iodine solution in an acidic medium. However‚ iodine is not very soluble in water (0.001M)‚ this
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radioactive iodine capture. By creating a hybrid substance with the PAN and the chalcogel in a mixture‚ the theory is that they can create a mechanically stable efficient iodine capture method. This experiment did not study the best ratio; therefore it may be further studied and experimented with in order to find the best Mcg/MPAN mixture for maximum sorbent loading before the pore structure of the binder collapses. They looked at iodine capture under dynamic conditions‚ which measured the iodine
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into body heat and muscular energy. The thyroid gland produces hormones from the thyroid tissue cells called triiodothyronine (T3) and thyroxine (T4) which regulates our metabolism and oxygen consumption of tissues. These hormones are comprised from iodine and amino acids from proteins. The pituitary gland controls the release of hormones from the thyroid gland. Deficiency of these hormones can affect all body functions. The thyroid gland also produces calcitonin‚ which participates in the regulation
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Determination of Vitamin C by Redox Titration with Iodine Vitamin C (ascorbic acid) is an antioxidant that is essential for human nutrition. Vitamin C deficiency can lead to a disease called scurvy‚ which is characterized by abnormalities in the bones and teeth. Many fruits and vegetables contain vitamin C‚ but cooking destroys the vitamin‚ so raw citrus fruits and their juices are the main source of ascorbic acid for most people. One way to determine the amount of vitamin C in food is to use a
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Determination of Chemical Formulae: The Reaction of Zinc and Iodine By Sarah Abstract: The main objective of this experiment was to use to the reaction between zinc and iodine to examine the validity of the Law of Conservation of Mass and the Law of Constant Composition. The Law of Constant Composition was tested by determining the mass of each of the reactants‚ zinc and iodine‚ and comparing their total to the mass of the zinc iodide product plus the excess zinc. The total mass of the reactants
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of a program of oral hygiene. Antiseptics are also used for disinfection of inanimate objects‚ including instruments and furniture surfaces. Commonly used antiseptics for skin cleaning include benzalkonium chloride‚ chlorhexidine‚ hexachlorophine‚ iodine compounds‚ mercury compounds‚ alcohol and hydrogen peroxide. Other agents which have been used for this purpose‚ but have largely been supplanted by more effective or safer agents‚ include boric acid and volatile oils such as methyl salicylate (oil
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Report of redox titration--- Iodine titrated against sodium thiosulphate Objectives The objective of this experiment is to balance the equation for the reaction between sodium thiosulphate and iodine. Principle As the reaction between sodium thiosulphate and iodine is a redox reaction‚ so I make use of this to perform a redox titration‚ iodine titrated against sodium thiosulphate. From the experimental result‚ I can find out the number of mole of the two substances‚ hence I can calculate
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Chernobyl Disaster Today‚ I am going to discuss about the biggest nuclear disaster that happened in the Worlds History. It’s called as Chernobyl disaster. This Disaster happened in Ukraine which was part of Soviet Union by then. It happened at the Chernobyl site between Pripyat and Chernobyl. The reason of this disaster is mainly human negligence and lack of knowledge. 25 April 1986... It was a beautiful Friday night with cool breeze blowing with a slight humidity. People were in their homes
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