the hydrate copper (II) sulfate and the anhydride we were able to determine the mass of water in the hydrate. This information was then used to determine the empirical formula of the hydrate‚ defined as a compound formed by the addition of water to another molecule. In the first trial‚ the mass of water in the hydrate was determined to be 0.41 g‚ while in the second trial the mass of water was 0.52 g. Moles of water associated with a single mole of anhydride were then calculated for both trials‚ giving
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Ayiana Diaz 10/30/17 Periodic Table Project Mrs. Foley: Period 1 Magnesium Magnesium is a major element. It’s the 7th ample element in the earth’s crust and the 8th most plenteous element in the universe and has diverse uses; some important and others impressive. Magnesium came from Magnesia‚ a district found in Greece. Magnesium was first discovered in 1755 by a scientist‚ Joseph Black. Black conducted an experiment in which he distinguished magnesium oxide from calcium oxide
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Pollution in Coal Based DRI Summer Internship Project‚ 2012 Supervised by Susmita Dasgupta susmita.dasgupta@hotmail.com 1 DRI‚ or directly reduced iron is a method of producing solid iron from iron oxide 2 Iron from iron ore can be • In solid form In solid form‚ iron ore can be 1. DRI produced in coal based kilns 2. HBI produced in gas based kiln. 3. DRI does not need coking coal at all. • Or in molten form In molten form iron can be produced in the 1. Blast Furnace‚ needs coking coal. 2.
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These modifications are grafting‚ alkylation-especially esterification including acetylation. The purpose of the project is to prepare acetylated starches/starch esters of different Degree of Substitution using different concentrations of acetic anhydride for modifying the native starch. The testing of samples is done by testing various properties of the obtained samples such as Degree of Substitution‚ Solubility‚ Swelling Power‚ Light Transmittance and Water Binding Capacity. INDEX
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prepare the water bath‚ ice bath and a fluted filter paper while others were tasked to weigh the filter papers in advance so that the experiment will flow smoothly. The formation of crude acetanilide was due to the acetylation of aniline and acetic anhydride. The recrystallizing solvent dissolved the acetic acetanilide and was heated in a water bath. Crystals started to form after cooling the solutions in an ice bath. Pure acetanilide was the product after the second crystrallization which was obtained
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Preparation of Acetylsalicylic Acid Abstract Acetylsalicylic acid was prepared using salicylic acid and acetic anhydride. As a result‚ a white‚ powdery substance was formed (0.1931g‚ percent yield 91.30%) and was defined by melting point (124.5 – 134.5°C) and observation of color change with ferric chloride. Introduction Acetylsalicylic acid (aspirin) is one of the most popular analgesic drugs on the market today. It also acts as an antipyretic and anti-inflammatory drug. Salicylic acid itself
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pomegranate juice was treated with Fomes fomentarius laccase at various enzyme concentrations (0.5–5 U/ mL)‚ temperatures (20–50C) and times (30–300 min). The effect of these enzymatic treatments on total phenol content and clarity of the juice were evaluated using a central composite design. The optimum treatment conditions were: enzyme concentration 5 U/mL; time 300 min; and temperature 20C. Their application led to a 40% reduction of total phenols but induced a threefold decrease of the juice clarity
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50-100 mg (immediate release tablets) every 4-6 hours as needed for pain. The maximum dose is 400 mg/day. To improve tolerance patients should be started at 25 mg/day‚ and doses may be increased by 25 mg every 3 days to reach 100 mg/day (25 mg 4 times daily). Thereafter‚ doses can be increased by 50 mg every 3 days to reach 200 mg day (50 mg 4 times daily). Tramadol may be taken with or without food. Recommended dose for extended release tablets is 100 mg daily which may be increased by 100 mg every
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experiment in thermochemistry. Included are the methods‚ results‚ and interpretation of results of an experimental determination of an enthalpy of reaction. The reaction being studied is between sulfuric acid‚ and magnesium metal. ( ) ( H2SO4 aq +Mg s)®H2 ( g )+MgSO4 (s) This reaction is run as an isothermal reaction‚ where the enthalpy change is measured by the change in volume of melting ice. Published values for the density of water‚ and ice‚ as well as the heat of fusion of water will be
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uses‚ which include; reducing fevers‚ reducing headache pain‚ relieve swelling and joint pain often associated with arthritis‚ enhances the elimination of uric acid. Acetylsalicylic acid‚ aspirin‚ is prepared by reacting salicylic acid with acetic anhydride:  Figure 1. Chemical Equation for Aspirin Synthesis (Aspirin) Tylenol‚ acetaminophen‚ is also used both as a fever reducer and pain reliever. Acetaminophen is prepared by reacting ammonia with acetic acid:  Figure 2. Chemical
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