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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ACQUISITION METHODS 4 A. Introduction and Motives for Mergers 4 1. Shareholder Protections: 4 2. Appraisal Rights 4 3. Efficient Markets and the Paradox of the Search for Bargains 4 B. Methods of Structuring Business Acquisitions 4 1. Tax & Accounting Issues 4 2. Corporate Deals 5 3. Deals with Shareholders 5 C. Formalities for Statutory Mergers 6 1. Mergers 6 2. Case: Schreiber v. Carney: 6 D. Formalities for Asset Acquisitions 6 1. Asset Purchases – Qualitative Approach & DGCL § 271 6 2. Case:
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Preparation of Acetylsalicylic Acid Abstract Acetylsalicylic acid was prepared using salicylic acid and acetic anhydride. As a result‚ a white‚ powdery substance was formed (0.1931g‚ percent yield 91.30%) and was defined by melting point (124.5 – 134.5°C) and observation of color change with ferric chloride. Introduction Acetylsalicylic acid (aspirin) is one of the most popular analgesic drugs on the market today. It also acts as an antipyretic and anti-inflammatory drug. Salicylic acid itself
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Archana A. Bele et al. IRJP 2011‚ 2 (12)‚ 56-60 INTERNATIONAL RESEARCH JOURNAL OF PHARMACY Available online www.irjponline.com ISSN 2230 – 8407 Review Article STANDARDIZATION OF HERBAL DRUGS: AN OVERVIEW Archana A. Bele*‚ Anubha Khale H.K College of Pharmacy‚ Jogeshwari (W)‚ M.S.‚ India Article Received on: 19/10/11 Revised on: 22/11/11 Approved for publication: 13/12/11 *Email: scientific.cell@hkcollege.ac.in ABSTRACT Herbal drugs have been used since ancient times as medicines
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Homework Zero 0. What do you hope to achieve in this course? I have taken economics courses in the past‚ but was never strong with the math equations. I am excited to improve this weakness of mine. 1. What skills do you bring to the classroom? To your fellow students? Although I was an economics major in undergrad‚ I took many computer classes and as a result am very proficient with computers. I can use these skills when working with classmates as well. 2. How will your classmates
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Analytical Chemistry Experiment 2b: Determination of the ASA Content of Aspirin Due Date: September 16‚ 2013 Experiment#: 2b Title: Determination of the ASA Content of Aspirin Aim: To determine the Molar Concentration of NaOH and HCl acid used in their Standardization processes and to determine the acetylsalicylic acid (ASA) content in Aspirin. Materials/Apparatus: materials used are the same as that outlined in the laboratory procedure prepared by the laboratory instructor. Procedure: The
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Herbal supplements & their Standardization. Herbal supplements are a type of dietary supplement that contain herbs‚ either singly or in mixtures. An herb (also called a botanical) is a plant or plant part used for its scent‚ flavor‚ and/or therapeutic properties. A dietary supplement is a product taken by mouth that contains a "dietary ingredient" intended to supplement the diet. The "dietary ingredients" in these products may include: vitamins‚ minerals‚ herbs or other botanicals‚ amino acids
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2.1 The 0-1 Knapsack Problem (KP) The Knapsack Problem is a combinatorial optimization problem‚ which search out a best solution from among many other feasible solutions. It is concerned with a fixed size knapsack that has positive integer capacity (or volume) V. There are n numbers of distinct items that may potentially be placed in the knapsack. Item i has a positive integer capacity(volume) Vi and integer benefit Bi. In addition‚ there are Qi quantity of item i available‚ where quantity Qi is
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AGRICULTURE AND TECHNOLOGY DEPT: CIVIL ENGINEERING UNIT: CHEMISTRY 1 (SCH 2109) PRACTICAL REPORT EXPT 2: Standardization and Determination of Concentration of Hydrochloric Acid in a Given Solution by ARAKA BRAMWEL MBOGO EN251-0221/2010 TITLE: STANDARDIZATION and DETERMINATION OF THE CONCENTRATION OF HYDROCHLORIC ACID PRESENT IN A GIVEN SOLUTION Aims: To be able to standardize Sodium Hydroxide (NaOH) solution using a standard solution of Oxalic acid. To be able to prepare standard
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divided into three parts; the preparation of the solutions‚ the reaction between Hydrochloric Acid and Ammonium Hydroxide (part b)‚ and the formation of Magnesium Oxide (part c). 200 mL of deionized water were added to a beaker followed by the addition of 100 mL 6 M HCl‚ which reacted to make 300 mL of a 2 M HCl solution used for Part B. Next‚ 50 mL of deionized water were added to a separate beaker and then 100 mL 3 M NaOH were added to the beaker to form 150 mL of a 2 M NaOH solution for Part C. While
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