Objective: To determine the concentration and equilibrium constant for a reaction of colored product using absorption spectroscopy‚ to create a calibration curve for determining equilibrium concentrations by applying Beer’s law and to force the completion of a reaction by applying Le Châtelier’s principle. Procedure: A diluted solution was made from the stock of 0.0025 M Fe(NO3)3 by diluting 4.0 mL to exactly 100.00 mL‚ using serological pipet and volumetric flask. The concentration of the diluted
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yield of the pyrrolidine enamine. This condition was leaded good yields (73.6%) without side reactions. Acylation gave an enol form (71.7%) and a keto form (28.3%) of 2-acetylcyclohexanone mixture‚ the composition of which was determined by 1H-NMR spectroscopy. Key words : pyrrolidine‚ enamine‚ mild condition‚ NMR 1. Introduction The formation reactions of carbon-carbon bonds are important in organic synthesis [1-5]. In general‚ acylation reaction is one of the important carbon-carbon forming reactions
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to transmit the signals from the airway adapter to the monitor for the purpose of displaying the EtCO2 values. • Sensor- The purpose of the sensor is used to collect a sample of gas from the patient’s airway and using infrared spectroscopy or mass correlation spectroscopy method to determine the value of EtCO2. Depending on the type of operation‚ the sensor is either placed on the adapter itself or is located at a distance from the adapter.
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The Basics of NMR Chapter 1 INTRODUCTION [pic] NMR Spectroscopy Units Review [pic] NMR Nuclear magnetic resonance‚ or NMR as it is abbreviated by scientists‚ is a phenomenon which occurs when the nuclei of certain atoms are immersed in a static magnetic field and exposed to a second oscillating magnetic field. Some nuclei experience this phenomenon‚ and others do not‚ dependent upon whether they possess a property called spin. You will learn about spin
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Preparation of N‚N-Diethyl-m-toluamide (DEET) and its Identification by IR and NMR Spectroscopy Eim A. Chemist CHEM 304 July 10‚ 2005 INTRODUCTION N‚N-Diethyl-m-toluamide (DEET) is the active ingredient in many insect repellants.1 In this experiment‚ DEET will be prepared from m-toluic acid through the intermediate acid chloride and then identified by its IR and proton NMR spectra. The overall reaction is a series of two acyl substitutions and is shown in Scheme 1 below: [pic] Scheme
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A REPORT ON LASER 1 Techno India College of Technology Megacity‚Rajarhat Kolkata 700156 A Report on LASER TECHNOLOGY By ZAKIR UDDIN AHMAD Student B.Tech 3rd year Applied Electronics and Instrumentation Engineering 2012 2 Abstract The word laser is an acronym that stands for "light amplification by stimulated emission of radiation." In a fairly unsophisticated sense‚ a laser is nothing more than a special flashlight. Energy goes in‚ usually in the form of electricity‚ and light comes out
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Physics 4052 Spring 2004 Y. Kubota K. Wick Project Proposal for Physics 4052 Introduction You must begin to think about a possible experimental project to carry out next semester (Physics 4052). The reason for this is two-fold: first‚ it will introduce you to the process of proposal writing‚ which is an unavoidable and very important part of modern experimentation‚ and second‚ it will enable us to make any necessary plans for procuring equipment. To start you thinking about this process‚
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colorado.edu/CCCE/frame/images/handbook.pdf>. Organic Chemistry I Laboratory Manual. Plymouth: Hayden-McNeil‚ 2012. 92. Print. [ 3 ]. "Stereospecific Reduction of Benzil with Sodium Borohydride; Determination of the Stereochemistry by NMR Spectroscopy." Web. 13 Nov. 2011. . [ 4 ]. Padias‚ Anne B. Making the Connections²: A How-To Guide for Organic Chemistry Lab Techniques. 2nd ed. Plymouth‚ MI: Hayden McNeil‚ 2011. Print. [ 5 ]. "The Organic Chemistry Laboratory Web Pages - UW Madison." Home
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analyzed through their melting point and IR spectroscopy to determine whether the metal bonded to a Sulfur atom or an Oxygen atom of the DMSO. After analyzing the IR spectrum‚ it was determined that S=O shifted to a lower wavenumber in CuCl2~2DMSO and that S=O shifted to a higher wavenumber in RuCl2~4DMSO. Introduction Depending on the metal‚ it will bond to DMSO through its oxygen or sulfur atom. This will cause the frequency of the S=O bond absorption to move depending on which atom it bonds
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Report for 2-ethyl-1‚3-hexandiol Calculations Theoretical yield: 1.857g Product Yield: 1.055g ----> Percent yield = (1.055g/1.87g) x 100% = 56.41% Starting amount of diol: 1.184g ----> Percent Yield = (1.184g/1.87g) x 100% = 63.32% Spectroscopy O-H (Stretch‚ H-bonded) C-H (Stretch) C-H (2720-2820 cm-1) Carbonyl C-O (Stretch) Product wavelength cm-1 3422 Strong‚ Broad 2877‚2936‚2964 Strong‚ Medium None Present 1705 Strong 1043 Strong Structure The Structure in
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