chemicals. Nitric acid produces toxic nitrogen dioxide fumes during the reaction. Use gloves and a hood‚ avoid contact with the acids‚ and do not breathe their vapors. The nitro naphthalene is a suspected carcinogen; avoid contact. The mixture of hexanes is very flammable; keep flames away. Procedure: Into a 5-ml conical vial‚ 1.0 ml of mixed 1:1 sulfuric acid and nitric acid was added. Approximately‚ 0.610 g of finely divided naphthalene was added in small portions to the solution while stirring
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Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=1-propanol Webmaster Webmaster. (2013). Ethyl Acetate. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=ethyl+acetate Webmaster Webmaster. (2013). Hexane. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=hexane Webmaster Webmaster. (2013). 2-Butanol. Retrieved from: http://www.stenutz.eu/chem/solv6.php?name=2-butanol Sigma-Aldrich
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Purification of Acetanilide by Recrystallization Method Dupaya‚ Julian Victor M. Estacio‚ Jerwin Caesar A. Farnacio‚ Rebecca Ruth Gabito‚ Jose Luis F. Gallo‚ Cian Carlo M. Galvez‚ Joshua M. Group no.4‚ 2D-Medical Technology‚ Faculty of Pharmacy‚ University of Santo Tomas ABSTRACT Recrystallization is a method for purifying solid organic compounds. The process is dissolving the solid to be purified in a hot solvent and cooling the solution slowly‚ this allows impurities with different
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Ethical and Unethical issues about Coca Cola http://www.bigbrummie.co.uk/ The company has come under fire in the last few months for the way in which its workers are treated in Guatemala. On February 25‚ 2010‚ Coke was sued by those Guatemalan labourers‚ who claim that they‚ “endured a campaign of violence” from the people who worked for the bottling or processing plants owned by Coke. (Unethical) In 1998‚ Coca-Cola set up a bottling plant in Perumatti in the southern state of Kerala. Since
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Feb/10/2013 Lab# 3 Section: 110 Pre-Lab Report Determining the Density of Various Liquids and Solids The purpose of this experiment is to determine the weight (density) of certain liquids and solids in chemistry. These liquids include; Water‚ Hexane‚ Carbon Tetrachloride‚ and solids include; Copper‚ Zinc‚ Lead and‚ Aluminum. It’s important to know the weight of these products so you can properly conduct experiments and make clear observations. Different techniques will be used to determine these
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Experiment #8 – properties of Alcohols and Phenols Introduction As has been mentioned before‚ over 20 million organic compounds have been identified. If each substance had to be studied as an entity completely separate from all the other substances‚ the study of organic chemistry as a whole would be impossible; that is to say‚ even more impossible than you currently believe it to be. Fortunately‚ the subject can be organized and it is often organized around the concept of the functional group
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Introduction Chromatography is a technique used to separate a mixture into its individual components. In this experiment‚ chromatography is done by using a thin layer chromatography (TLC) plate and filter paper. The word ‘chromatography’ itself means the separation of colours. However‚ nowadays‚ both coloured and colourless compound are used in chromatography by various methods. In chromatography‚ the separation process of mixture is mainly based upon the polarity and molecular weight of sample
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OBJECTIVE The purpose of this experiment is to analyze mixtures of compounds prior to‚ during and after a separation scheme. This experiment also allows monitoring reactions of organic molecules‚ and determines the identity of a mixture of compounds. STRUCTURES AND PHYSICAL PROPERTIES OF REACTANTS [1] SOLVENTS | a. Hexane1Molecular Molarity: 86.18 g/molBoiling Point: 69 ºCMelting Point: -95ºCDensity: 0.659 g/mL at 25ºCWater Solubility: Insoluble in waterColor/Texture: Colorless/LiquidHazardous
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1. The following compound A‚ is used as an artificial sweetener. Compound A (April 2009) (a) Name all functional groups in A (b) For each of the carbon X‚ Y and Z in compound A‚ determine (i) the type of hybridization (ii) the bond angle (c) A is optically active. Mark on the structure the chiral centre(s) in A. 2. (a) Draw structural formula of (i) a haloalkane
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Abstract: The purpose of this laboratory is to convert benzophenone to diphenylmethanol. This was done by using sodium borohydride to reduce benzophenone. The product was then crystalized from hexanes then using the melting point and IR testing it was possible to characterize it. The melting point range was… Introduction: This lab is possible because of oxidation and reduction reactions. In organic chemistry oxidation is the loss of electron density around a carbon‚ while reduction is an increase
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