Lizz Radican Lab 4 2/24/14 The Diels-Alder Reaction: Results and Problems 1.) Table 1: Mass‚ Percent Yield and Melting Points for Diels-Alder Reaction Products. Product Mass (g) Percent Yield Melting Points (°C) Anhydride 8.87 88.2% 164.4-165.8 Dicarboxylic Acid 3.20 71.9% 176.6-180.1 Unknown 1.66 111% 168.7-176.0 2.) See attached calculations. 3.) Table 2: Anhydride Product IR Data: Functional Group or Bond Peak Location(s) (cm-1) Peak Intensity Symmetric
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Lab Report 1 Friedel-Crafts Alkylation of Benzene and Dimethoxybenzene Objective: 1. To understand the general process‚ reaction and limitations of Friedel-Crafts Alkylation in regards to Dimethoxybenzene 2. To apply the reaction of Friedel-Crafts Alkylation to dimethoxybenzene Chemical Index: Chemical Structure Molecular Weight Melting Point Boiling Point Acetic Acid C2H4O2 60.05 g/mol 16-17°C 118-119°C T-Butanol C4H10O
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Organic Chemistry I LAB EXAM: FINAL BROMINATION OF BENZENE SYNTHESIS AND PURIFICATION OF BROMOBENZENE: PROCEDURE DATA TABLE Chemical Boiling point C Melting Point C Density g/mL Solubility Benzene 80.1 5.5 0.88 Slightly in H2O Toluene 110.6 -93 0.87 Slightly in H2O Bromobenzene 155-156 -30.8 1.50 Insoluble Dibromobenzene 220.40 87.31 0.96 Insoluble MATERIALS: Graduated cylinder Weight scale Buchner funnel Filter flask Rubber stopper Hot plate Thermometer Conical funnel Various
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stretching vibration of benzene···X (X=He‚Ne‚Ar‚Kr‚Xe) van der Waals molecules P. Hobza and Ota Bludsky J. Heyrovsky Institute of Physical Chemistry and Electrochemistry‚ Czechoslovak Academy of Sciences‚ 18223 Praha‚ Czechoslovakia H. L. Selzle and E. W. Schlag Institute of Physical and Theoretical Chemistry‚ Technical University of Munich‚ 8046 Garching‚ Federal Republic of Germany (Received 26 December 1991; accepted 17 March 1992) The C6v structure of benzene’ "X (X = He‚ Ne‚ Ar‚ Kr
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15. Benzene and Aromaticity • C-Phen DM Drops (Chlorpheniramine/Dextromethorp/Phenylephrine) • This combination medication is used to treat symptoms caused by the common cold‚ flu‚ allergies‚ hay fever‚ or other breathing illnesses (e.g.‚ sinusitis‚bronchitis). • One of the active ingredients is Phenylephrine –a decongestant that helps relieve stuffy nose symptoms. H HO OH H N CH3 . HCl What is the configuration at this chirality center? R or S ? www.primaryrx.com/pdf/C-PHEN%20DM%20DROPS
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Retention times (mins): Anthracene 8.67 Benzene 4.37 Naphthalene 5.98 Anthracene standards Peak Area Ratio Sample Concentration Anthracene Benzene A/B 4 2.25 mg/100mL 355003 496920 0.714406746 3 4.5 mg/100mL 583453 467385 1.248334885 2 6.75 mg/100mL 888620 513249 1.73136236 1 9 mg/100mL 1097279 518713 2.115387507 Naphthalene standards Peak Area Ratio Sample Concentration Naphthalene Benzene N/B 4 1.5 mg/100mL 667589 496920 1.343453675
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succinic acid‚ surface active agents‚ and more. In the United States‚ one plant uses only n-butane and another uses n-butane for 20% of its feedstock‚ but the primary raw material used in the production of Maleic Anhydride is benzene. The Maleic Anhydride industry is converting old benzene plants and building new plants to use n-butane. Maleic Anhydride also is a byproduct of the production of phthalic anhydride. It is a solid at room temperature but is a liquid or gas during production. It is a strong irritant
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Energy of Benzene Using Bomb Calorimetry Kaitlynn‚ Jesse ‚ Belinda Truman State University Abstract The resonance stabilization energy of benzene is investigated by the combustion of cyclododecatriene. The heat of combustion for cyclododecatriene was determined using bomb calorimetry and used to solve for the stabilization energy of benzene. The bond stabilization energy of benzene is found to be 167.6 ± 388.3 kJ/mol. This evidence that benzene has a resonance
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in outdoor units. Ambient air temperature affects significantly the exposure levels as a result the high temperatures in the summer and spring explain the increased benzene concentrations in exposure values. When temperatures are very low (wintertime)‚ the exposure levels are less than usual for an equivalent quantity of close benzene level (Fig. 13). It appears that the presence of wind reduce exposure levels‚ especially to employees who are performing outdoor activities. No strong correlation found
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conclusions of law to which no response is required. To the extent a response is required‚ Unocal denies the allegations. Further‚ Unocal specifically denies that Plaintiff Paul Simmons was exposed to any Unocal product or that he was exposed to benzene from any Unocal product‚ and it specifically denies that it is liable to Plaintiffs. 10. Subparts (a) through (r): Denied. The allegations of these subparagraphs are directed to Defendants other than Unocal‚ and Unocal is without sufficient knowledge
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