The Diels-Alder Reaction of Anthracene with Maleic Anhydride 1 The Diels-Alder Reaction of Anthracene with Maleic Anhydride Microscale Diels-Alder Reaction Leah Monroe March 6‚ 2003 Organic Chemistry Lab II Experiment performed on February 25 and 27‚ 2003 Abstract: This experiment involved a reaction between anthracene and maleic anhydride via a Diels Alder reaction to yield 9‚ 10-dihydroanthracene-9‚10-α‚ β-succinic anhydride. Anthracene was the diene and maleic anhydride was the
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SUBRAHMANYAN CHANDRASEKHAR was born into a free-thinking‚ Tamil-speaking Brahmin family in Lahore‚ India. He was preceded into the world by two sisters and followed by three brothers and four sisters. His mother Sitalakshmi had only a few years of formal education‚ in keeping with tradition‚ and a measure of her intellectual strength can be appreciated from her successful translation of Ibsen and Tolstoy into Tamil. His father C. S. Ayyar was a dynamic individual who rose to the top of the
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Physics Lab Report 1. For the wavelength measurement of different colors in the Hydrogen spectrum done in the lab‚ tabulate your data recorded along with the wavelength calculations performed for all colors in the spectrum. (2 points) Line Color a_left (m) a_right (m) a_average (m) sinq nm Red 0.235 0.27 0.2525 0.182145 5.47E-09 Green-Blue 0.17 0.33 0.25 0.180505 5.42E-09 Indigo 0.16 0.35 0.255 0.18378 5.52E-09 Violet? 0 0 0 0 0 To find the wavelength for all of the colors in this lab we used two
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سبح ــــــــــــــــانك لا علم لنا الا ما علمتنا انك انت العليم الح ــــــــــــــكيم اللــهـ ــــم اخرجنا من ظلمات الوهـم وارزقنـا نور الفهـ ــــــــــــــــــــم وارزقنا فهم النبيين وحفظ المرسلين والهـ ـــام الملائكة المقربين صــلوات الله وسلامه عـــلى رسولنــا وعليهــــــــــــــــــم اجمعيــــــــــــــــــــــــــــــــــــــــــــــــــــــن REASONS SOME PEOPLE DON’T VOTE In most elections there is a greater amount of non-voters than voters. People who don’t vote are often apathetic
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level * 2 3 0 8 9 6 9 9 7 3 * BIOLOGY Paper 5 Planning‚ Analysis and Evaluation Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black ink. You may use a pencil for any diagrams‚ graphs or rough working. Do not use staples‚ paper clips‚ highlighters
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VRAJESH PATEL April 20‚ 2013 TITLE: Structure Elucidation of Organic Compounds Using Infrared Spectrometry and Computer Molecular Models. OBJECTIVES: Using the Spartan Student v5.0.0. Software in computer‚ determine the absorption frequencies of C=O str.‚ C-H str.‚ and C-H bend in the following molecules: 1. Benzaldehyde 2. Ethyl Benzoate 3. 3-Pentanone 4. Pentanal * For given unknown Infrared spectra‚ figure out the compounds based on the absorption
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Determination of % Composition of Pennies Using Redox and Double Displacement (Precipitation) Reactions Introduction: Oxidation involves the gain of electrons of hydrogen or the loss of oxygen or decrease in oxidation state. If zinc completely reacts with HCL‚ then the theoretical yield of copper should be equivalent to the actual yield. Purpose: In this lab‚ we will determine the percent composition of a modern (post-1982) penny by using a strong acid to react and dissolve the zinc
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S OUTHEAST ASIAN J T ROP MED P UBLIC H EALTH ANTI-HEAD LICE EFFECT OF ANNONA SQUAMOSA SEEDS Junya Intaranongpai 1‚ Warinthorn Chavasiri 2 and Wandee Gritsanapan 1 1 Department of Pharmacognosy‚ Faculty of Pharmacy‚ Mahidol University‚ Bangkok; Department of Chemistry‚ Faculty of Science‚ Chulalongkorn University‚ Bangkok‚ Thailand 2 Abstract. The present study focused on the separation and identification of the active compounds against head lice from the hexane extract of Annona squamosa
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Every year we celebrate National Science Day on 28th February to honour our Nobel laureate Sir Chandrasekhara Venkata Raman for his invention of the Raman effect through his experiments on the scattering of light. Nation pays tribute and expresses gratitude to Sir CV Raman and to all the scientists on this day for their genius and dedication. It is a day‚ which attracts many young minds to take up science as their career and a day to see novel scientific achievements. The basic objective of observation
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Experiment 1: Mechanism of Nitrile Oxide and Alkene Cycloaddition 1. Purpose: to clarify the mechanism for the cycloaddition reaction between benzonitrile oxide and an alkene‚ and to test the regiochemistry of the reaction between benzonitrile oxide and styrene. 2. Plan: Each student in a group of three will work to create a reaction with the Benzonitrile Oxide with‚ cis-stilbene‚ trans-stilbene‚ or styrene in an Erlenmyer flask. With this Reaction solution thin layer chromatography will be
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