Paracetamol - a curriculum resource Frank Ellis RSeC ROYAL SOCIETY OF CHEMISTRY Paracetamol - a curriculum resource Compiled by Frank E llis Edited by Colin Osborne and Maria Pack Designed by lmogen Bertin Published by the Royal Society of Chemistry Printed by the Royal Society of Chemistry Copyright 0 Royal Society of Chemistry 2002 Registered charity No. 207890 Apart from any fair dealing for the purposes of research or private study‚ or criticism or review‚ as permitted under
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work articles e.g. encyclopedias | | Plastic Deformation: Constitutive Description Encyclopedia of Materials: Science and Technology | | Nuclear Reactors: Pressure Vessel Steels Encyclopedia of Materials: Science and Technology | | DISTILLATION | Dividing Wall Columns Encyclopedia of Separation Science | | Gas-Turbine Power Plants Encyclopedia of Physical Science and Technology | | Desalination and Energy Use Encyclopedia of Energy | | More related reference work articles
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Distillation is a commonly used method for purifying liquids and separating mixtures of liquids into their individual components. Familiar examples include the distillation of crude fermentation broths into alcoholic spirits such as gin and vodka‚ and the fractionation of crude oil into useful products such as gasoline and heating oil. In the organic lab‚ distillation is used for purifying solvents and liquid reaction products. To understand distillation‚ first consider what happens upon heating
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Chemistry revision Atoms elements and compounds Atom-the smallest part of an element that can still be recognized as an element Element-a substance made up of only one type of atom. An element cannot be broken down chemically into any simpler substance Nucleus-middle of the atom‚ which contains protons and neutrons Electron-tiny particle‚ which surrounds the nucleus with a negative charge Compound-when two elements react and combine together which contain more than one element. There
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17‚ 2012 Abstract The distillation process was successfully done because of the separation of water from the acetone. When the distillate was lighted with the matchstick it produced flame which indicates that there was more presence of acetone than water. When the sodium nitroprusside‚ sodium hydroxide and glacial acetic acid was added to the distillate‚ it turned to violet. This means that there is the presence of ketone. Introduction Distillation is the process heating a liquid
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Dehydration of Alcohols Abstract The dehydration of cyclohexanol to cyclohexene can be done through fractional distillation. Once the fraction has been collected it must then be dried. The dried distillate is finally tested to determine whether or not it has been dehydrated. The three tests used were infrared spectroscopy‚ Bromine chemical test and Bayer’s chemical test. The infrared spectroscopy showed a large narrow peak at 3062.12(cm-1) and 3020.71(cm-1) which indicates that there is a double
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means also produce more ethyl ethanoate. Increase in production of ethyl ethanoate in turns increase the actual mass obtained. Since the theoretical mass will not change‚ percentage yield of ethyl ethanoate will also increase. Also‚ the simple distillation process should be repeated by few
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hydrogen carbonate‚ as well as with water‚ and then dried with anhydrous sodium sulfate. The percent yield of isoamyl acetate was 52.79%. The product was isolated using a combination of techniques – acid-base extraction‚ drying‚ and in special cases distillation. Introduction: The importance of banana oil as an artificial flavoring in the food industry is immense. Synthetic banana flavorings can be used as a substitute for natural banana flavoring in the event that banana tree crops are damaged or
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solvent to another. The process of washing the solutions by phase transfer was used in order to remove impurities from the main solvent layer. Finally‚ the crude product was dried with anhydrous Calcium chloride and purified once more by simple distillation technique. Results and Discussion: Main reaction(s) and Mechanism(s): Reaction: Mechanism: Table of Reactants and Products: Compound Formula weight Volume used (mL) Weight used (g) Moles used Moles required Other
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MIXTURES‚ SOLUTIONS‚ SUSPENSIONS AND COLLOIDS MIXTURES A mixture is a combination made up of two or more different substances which are mixed but are not chemically bonded. There are also types of mixtures such as homogeneous mixtures and heterogeneous mixtures. SOLUTIONS A solution is defined as a homogeneous mixture composed of a solute; a substance dissolved into another substance known as a solvent. They can also be defined as groups of molecules that are mixed up completely in even
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