lecture. In this experiment you will convert an alcohol to an alkyl halide by reaction with a hydrohalic acid. The overall reaction is shown in equation 1; however the mechanism of the reaction depends on the structure of the alkyl group bearing the functional group being replaced. R−OH + H-X → R−X + H2O (1) th The reaction may occur by one of two mechanisms designated SN1 or SN2. Which mechanism operates depends on the structure of the R group and the reaction conditions. The first step in both mechanisms
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Reading and Though In Dwight MacDonald’s Reading and Though‚ he disagrees with Henry Luce’s Idea of functional curiosity. Luce coined the term “functional curiosity‚” meaning “the kind of searching‚ hungry interest in what is happening everywhere.” MacDonald’s opinion of functional curiosity is that it only encourages practice in reading rather than giving beneficial information. He considers today’s literature as flimsy and overwhelming. MacDonald assumes that all reading done in today’s society
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Grignard reaction Abstract: In this laboratory‚ triphenylmethanol was synthesised from reacting benzophenone and bromobenzene using Grignard reaction. As the reaction was to set up to produce a Grignard reagent and then recrystallize it to obtain pure sample. The percentage yield obtained was 55% and its melting point was 161 co which is within the literature value 160-163 co. In addition to that the IR spectroscopy confirmed the molecule structure to be triphenylmethanol. Introduction: The Grignard
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stabilised enolate ion which perfectly be acylated through treatment with an acyl halide yielding the product of interest. However‚ the major limitation of using this type of chemistry in organic synthesis is that if there are other base sensitive functional groups we wish to retain in our starting material‚ the use of a strong base will lead to the formation of vast amounts of unanticipated acylation reaction products. In 1954‚ Gilbert Stork developed another synthesis method that effectively yield
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CHEMISTRY 125 LABORATORY Name: Balagao‚ Sherey Mae U. Date Performed: September 8‚ 2014 Lab Schedule: 1:00-4:00 MW Date Submitted: September 19‚ 2014 Group No.: 4 Rating: Exercise No. 8 CARBOXYLIC ACIDS AND ACID DERIVATIVES I. OBJECTIVES: • To investigate the physical and chemical properties of Carboxylic acid and its derivatives • To understand the reactions of carboxylic compounds and derivatives. II. EXPERIMENTAL
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Title : Properties of hydrocarbon Objective : 1) To study the properties of hydrocarbons. 2) To determine the unknown samples. Results : Part A : Combustion Compounds Observations Hexane There was orange flame and burned mildly during the burning process. No soots and smoke were produced. C6H14 + 19/2 O2 6CO2 + 7H2O Cyclohexene Orange flame burned vigorously. A small amount of black soot and smoke were produced during the burning process.
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CARBON AND ITS COMPOUNDS Covalent Bond: A chemical bond formed by the sharing of two atoms. Types of Covalent Bonds i. Single Covalent Bond: A type of bond formed by sharing of one pair of electrons between two atoms. ii. Double Covalent Bond: A type of bond formed by sharing of two pairs of electrons between two atoms. iii. Triple Covalent Bond: A type of bond formed by sharing of three pairs of electrons between two atoms. Properties of Covalent Bond i. Their B.P. and M.P
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3/5/2011 EXPERIMENT EXPERIMENT 8 OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION IR ANALYSIS 8 Objectives to differentiate various types of oxygen-bearing organic compounds to device a scheme to distinguish each functional group Analysis of Oxygen-bearing Organic Compounds alanx3@yahoo.com OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION IR ANALYSIS to characterize an unknown sample through parallel chemical tests ARMSALCEDO ARMSALCEDO alanx3@yahoo
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hydrocarbons→ because of their symmetrical shape‚ they are considered non-polar or hydrophobic • Other elements such as oxygen‚ sulfur‚ phosphorus‚ and nitrogen may attach to the carbon backbone to form reactive “clusters of atoms” called functional groups • These functional groups possess chemical properties that are passed on to the hydrocarbon chain that they are attached to. They are also considered much more reactive than the hydrocarbon chain they are attached to. • Refer to Figure 4 on pg. 26
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The Evolution of Programming Languages Course Notes for COMP 348 and COMP 6411 These notes may be copied for students who are taking either COMP 348 Principles of Programming Languages or COMP 6411 Comparative Study of Programming Languages. First draft: Revised: August 1999 August 2002 c Peter Grogono 1999‚ 2002 Department of Computer Science Concordia University Montreal‚ Quebec CONTENTS ii Contents 1 Introduction 1.1 1.2 How important are programming languages? . . .
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