Potassium Potassium‚ also known by the symbol “K”‚ has an atomic number of 19 and an atomic mass of 39.0983. The atomic number of 19 implies that it contains 19 protons‚ 19 electrons‚ and 19 neutrons. It is found in Group 1‚ the alkali metals‚ and the fourth family on the periodic table. Because it is located in group one‚ it is one of the most highly reactive and electropositive metals and is a base. Potassium is a solid‚ silvery white metal at 298 Kelvin‚ and has a melting point of 336.53 Kelvin;
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Lethal injection is the practice of injecting a person with a fatal dose of drugs (typically abarbiturate‚ paralytic‚ and potassium solution) for the express purpose of causing the immediate death of the subject. The main application for this procedure is capital punishment‚ but the term may also be applied in a broad sense to euthanasia and suicide. It kills the person by first putting the person to sleep‚ and then stopping the breathing and heart‚ respectively. In 1970’s the people used Intravenous
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According to Elson (2000)‚ potassium is one of the most common prescribed minerals. This mineral is crucial to cardiovascular and nerve functions. When potassium is low fatigue is the most common symptom. The early symptoms include muscle weakness‚ slow reflexes‚ and dry skin or acne; these initial problems may progress to nervous disorders‚ insomnia‚ slow or irregular heartbeat‚ and loss of gastrointestinal tone. A sudden loss of potassium may lead to cardiac arrhythmia. Low potassium may impair glucose
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though they had direct contact with his tea cup. OJ Glasse was being blackmailed by Dusty Mantel‚ about the second and final Will that he discovered on his dead brother’s desk. He works for the FBI as a bio-chemist and would probably have access to potassium cyanide‚ but he “couldn’t even kill a rat for an experiment”‚ not to mention there was no direct opportunity after Dusty left to change. Tiffany Glasse had been robbed of her father’s fortune by Dusty‚ yet‚ she did not seem to know about it. She
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The Composition of Potassium Chlorate Objectives The objectives of this laboratory are: a) To experimentally determine the mass percent of oxygen in the compound potassium chlorate (KClO3) via the thermal decomposition of a sample of potassium chlorate. b) To qualitatively demonstrate that the residue resulting from the decomposition of potassium chlorate is potassium chloride. Background All compounds consist of elements chemically combined in fixed proportions – they obey the Law of Constant
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Recommended daily allowances There is no RDA for potassium‚ although the National Library of Medicine recommends 1‚600 to 3‚500 mg of potassium for the average adult diet. The association recommends equal amounts of sodium and potassium for our bodies. A variety of potassium-rich foods should be eaten daily for healthy and active people. Athletes also may need more potassium because it helps replace the lost of potassium from muscles and the lost in sweat during exercise. Athletes involved in
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5. POTASSIUM PERMANGANATE Potassium permanganate (KMnO4) is used primarily to control taste and odors‚ remove color‚ control biological growth in treatment plants‚ and remove iron and manganese. In a secondary role‚ potassium permanganate may be useful in controlling the formation of THMs and other DBPs by oxidizing precursors and reducing the demand for other disinfectants (Hazen and Sawyer‚ 1992). The mechanism of reduced DBPs may be as simple as moving the point of chlorine application further
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Potassium Hydroxide (KOH) Introduction Potassium hydroxide is an inorganic compound with the formula KOH‚ commonly called caustic potash. Along with sodium hydroxide (NaOH)‚ this colorless solid is a prototypical strong base. It has many industrial and niche applications. Most applications exploit its reactivity toward acids and its corrosive nature. In 2005‚ an estimated 700‚000 to 800‚000 tonnes were produced. Approximately 100 times more NaOH than KOH is produced annually. KOH is noteworthy
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EXPERIMENT 9 Composition Potassium of Chlorate IUA-‚TERIAL S AND E QUI PME NT Solids: Reagent Grade potassium chlorate (KC1O3)and potassium chloride (KCl). Solutions: dilute (6 M) nitric acid (HNO3) and 0.1M silvernitrate (AgNO3). Th.o No.0 crucibles with covers; Ceramfab pad. DISCUSSION The percentage composition of a compound is the percentage by mass of each element in the compound. If the formula of a compound is known‚ the percentage composition can be calculated from the molar mass and the
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Jay Patel 10/21/11-10/21/11 Lab Partners: Isha Dihora‚ Shivandu Patel‚ Dilan Kapadia Standardizing a Solution of Potassium Hydroxide Abstract: In this lab‚ a prepared solution of Potassium Hydroxide will be standardized. The solution we will be standardized by performing multiple calculations to ensure the upmost accuracy. The acid used for this titration will be KHP (C4H5KO4). Phenolphthalein we be added to the beaker of the dissolved acid before the titration will be added. The titration
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