aspirin to treat. The bark from willow trees‚ along with a few other trees‚ produces an anti-inflammatory agent called salicin. Salicin is an aromatic alcohol‚ this is indicated by the OH group of the benzene ring (benzene is aromatic hydrocarbon‚ which is an unsaturated cyclic hydrocarbon). Benzene and the OH groups are substituents as shown in the diagram. By the
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Molal Freezing Point and Boiling Point Constants | Solvent | Formula | Freezing Point (°C) | Kf(°C/molal) | Boiling Point (°C) | Kb(°C/molal) | Water | H2O | 0.0 | 1.86 | 100.0 | 0.51 | Acetic acid | CH3COOH | 17.0 | 3.90 | 118.1 | 3.07 | Benzene | C6H6 | 5.5 | 4.90 | 80.2 | 2.53 | Chloroform | CHCl3 | –63.5 | 4.68 | 61.2 | 3.63 | Ethanol | C2H5OH | –114.7 | 1.99 | 78.4 | 1.22 | Phenol | C6H5OH | 43.0 | 7.40 | 181.0 | 3.56 | Use the previous formula and the constant from Table 1 to
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executive suite that traces of benzene had been found in its bottled water Ronald Davis‚ President of Perrier Group of America ordered an intensive recall of all Perrier bottles in North America Few days later Perrier S.A. expanded the recall to the rest of the world Good? Or Bad? Perrier Caught in a Lie At first the excuse given by Perrier officials was that the contamination occurred because an employee mistakenly used cleaning fluid containing benzene to clean the production-line machinery
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Carboxylic acids are compounds which contain a carboxyl group‚ -COOH group‚ where the -COOH group is attached either to a hydrogen atom or to an alkyl group. One of the example of carboxylic acid is benzoic acid( benzene carboxylic acid) which has a benzene connected to the carboxyl carboxyl group‚ -COOH group. It has a formula of C6H5COOH. The carbon atom of a carboxyl group has a high oxidation state. Therefore‚ that many of the chemical reactions used for their preparation are oxidations. In
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This is because the benzene ring can be drawn both ways. On the left‚ the benzene ring is shown as a hexagon that has three double bonds‚ and on the right‚ the benzene ring is shown also as a hexagon‚ but with a circle inside. Two ways to Draw the Chemical Structure of
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Rate of Evaporation of Different Liquids Objective of the Project This project is of the rate of evaporation of different liquid‚ in which we also discuss the factors which affect the rate of liquid. Introduction When liquid is placed in an open vessel. It slowly escapes into gaseous phase ventually leaving the vessel empty. This phenomenon is known as vaporization or evaporation. Evaporation of liquids can be explained in the terms of kinetic molecular model although there
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Introduction This lab’s purpose was to determine whether Salicylic Acid made from methyl salicylate is the same as Salicylic Acid made from benzene. This information can be found by comparing the difference in melting points of the two samples of Salicylic Acid. Here are the physical properties of Salicylic Acid and the mechanism of reactions that occurred in this lab. How Salicylic Acid is derived: Procedure/Results First‚ .26mL of 2.0mmol methyl Salicylate was measured and put
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In the United States‚ benzene is one of the most used chemicals in terms of product manufacturing. Benzene is common in everyday life; however‚ extreme exposure creates long term health concerns. Per the Center for Disease Control and Prevention (CDC)‚ “Benzene works by causing cells not to work correctly. For example‚ it can cause bone marrow not to produce enough red blood cells‚ which can
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Analyze the given scenario and perform a K.T problem analysis to identify the cause of the problem. Sparkling mineral water is the primary product of Bubbles‚ Inc. This firm‚ which is based in France‚ serves three major markets— Europe‚ North America‚ and Australia. It collects water from a natural spring; the water is then filtered through a parallel array of three filter units‚ each containing two charcoal filters. The filtration process removes trace amounts of naturally occurring contaminants
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(n-decyl alcohol) in water 2. Predict whether the following pairs of liquids would be miscible or immiscible. It may be helpful to look up some of the chemical structures. (3pts) a. Benzene and water b. Water and methyl alcohol c. Hexane and benzene d. Methylene chloride and benzene e. Water and toluene f. Ethyl alcohol and isopropyl alcohol 3. Consider a crystallization of sulfanilamide in which 10mL of hot 95% ethyl alcohol is added to 0.10g of impure sulfanilamide
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