"Nitration of methyl benzene" Essays and Research Papers

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    Bromo

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    Tatiana Pachova BSc‐2‚ chemistry    Assistant : Chandan Dey  Sciences II – lab. A           Nitration of bromobenzene (n°28)  1. INTRODUCTION    1.1) 1.2) Purpose    The  objective  of  this  experiment  is  to  synthesize  the  p‐bromonitrobenzene  (bromo‐1‐nitro‐4‐benzene) out of bromobenzene‚ by nitration.    Scheme    Br Br HNO3 / H2SO4     Mechanism    The first step is the formation of the NO2 from the nitric acid:    NO2 1.3) O O S N

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    Solubility Lab

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    table‚ rating each system as soluble‚ insoluble‚ or partially soluble. Organic Compound Benzophenone Water Methyl Alcohol Hexane Malonic acid Biphenyl 2. Considering the polarities of the compound and the solvent and the potential for hydrogen bonding‚ answer the following: a) There should be a difference in your results between the solubilities of biphenyl and benzophenone in methyl alcohol. What explains this difference? A. B. C. D. Biphenyl has two rings Benzophenone is more polar than

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    spme

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    EXPERIMENT 4 ANALYSIS OF HYDROCARBON IN COMMON FUELS BY SOLID-PHASE MICROEXTRACTION (SPME) AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY (GC-MS) Abstract In the analysis the solid-phase microextraction (SPME) and capillary gas chromatography/mass spectrometry (GC/MS) was developed for the identification of volatile compounds (hydrocarbon) in fuel. The samples was used is (kerosene‚ diesel‚ thinner and petrol) and one unknown. After the analyte was extracted by SPME in 20min‚ it directly injected

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    Preparation of Azo Dyes

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    SAN CARLOS DEPARTMENT OF CHEMISTRY NAME: Maniwang‚ Ma. Aiza C. DATE: March 21‚ 2011 COURSE: BS Chemistry II APPROVED: ___________ PREPARATION OF AZO DYES ABSTRACT In this experiment‚ the azo dyes p-nitrobenzene azoresorcinol and methyl orange were prepared by the azo coupling reaction. The p-nitrobenzene azoresorcinol dye was prepared from p-nitroaniline and resorcinol. The diazonium salt formed was from the reaction of the cold solution of dissolved p-nitroaniline in hydrochloric

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    esterification. With o-hydrobenzoic acid‚ or salicylic acid‚ we are able to create acetylsalicylic acid otherwise known as aspirin as well as methyl salicylate‚ which is a component of oil of wintergreen. Both of which are used for pain relief/soreness. Salicylic acid is a member of the phenol class as their hydroxyl group (OH) is attached to a phenyl ring (benzene) and many phenols react with ferric chloride to cause a colour change. And so‚ in this investigation we are to prepare the two esters and

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    Fgdfh

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    Richard F. Daley and Sally J. Daley www.ochem4free.com Organic Chemistry Chapter 2 Introduction to Organic Nomenclature and Functional Groups 2.1 Drawing Organic Structures 73 2.2 Alkanes 77 2.3 Structural Isomerism 77 2.4 IUPAC Nomenclature 79 2.5 Naming Alkanes 80 2.6 Naming Cycloalkanes 87 2.7 Naming Complex Alkyl Groups 2.8 Functional Groups 97 2.9 Naming Alkenes and Alkynes 2.10 Naming Alkenes‚ Part II 108 2.11 Arenes 109 2.12 Organohalogens 113 2.13 Using Molecular

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    Tetrahydrocannabinol THC

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    and an ether group. The phenol group is a benzene ring with the attachment of an OH to the ring; the ether group is oxygen bonded to two R groups on either side of it. THC contains 20 sigma bonds and four pi bonds. Three rings are present as well‚ two cyclohexene rings and one benzene ring. Attached to the first cyclohexene ring is one methyl group. On the second cyclohexene ring‚ two methyl groups are present as well as the ether group. On the benzene ring‚ the hydroxyl group is the substituent

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    Developing Fuels

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    Ethene C2H4 iii. Cycloalkane Cyclohexane C6H12 iv. Alcohol Ethanol C2H5OH v. Ether Methoxy methane CH3OCH3 9. What does an aromatic compound contain? Note all other compounds are aliphatic A benzene ring 10. Give examples of all 3 types of structural isomerism i. Chain

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    Paracetamol Preperation

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    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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    Biochemistry

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    and ammonia react with the aromatic ring and gives a coloured salt compound. When Nitric acid is heated with a protein like tyrosine it gives off a yellow colour ‚or tryptophan and orange colour this is down to nitration. This is why this test is used for the presence of an activated benzene ring. The “(4) Test for sulphur”this

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