Synthesis of Aspirin Ling Tecson Gamido‚ Mitchiko Mariel M. Mizukami Abstract Acetylsalicylic acid‚ or also known as aspirin is known to be a drug that relives people of pain and is commonly used even today. It is synthesized from salicylic acid and ethanoic anhydride‚ both of small quantities. Phosphoric acid was used as a catalyst in the synthesis to speed up the process. Esterification is involved and the final product is aspirin with the presence of acetic acid as the byproduct. In order
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Case study Freud carried out a number of case studies‚ finding out from clients what was causing them problems or holding them back. They may have symptoms (e.g. phobia) that arose from the unconscious. E.g. Little Hans case study. Activation-synthesis theory of dreaming – Hobson and McCarley 1977 1. Biological theory of dreaming Dreams are random messages in the brain being interpreted to make a story. Messages are activated randomly‚ and then synthesized into a story. There is a dream state
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Journal of Management http://jom.sagepub.com/ Causes and Effects of Employee Downsizing: A Review and Synthesis Deepak K. Datta‚ James P. Guthrie‚ Dynah Basuil and Alankrita Pandey Journal of Management 2010 36: 281 DOI: 10.1177/0149206309346735 The online version of this article can be found at: http://jom.sagepub.com/content/36/1/281 Published by: http://www.sagepublications.com On behalf of: Southern Management Association Additional services and information for Journal of Management
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2.1 Synthesis of p-Toulichydrazone and Resacetophenone Schiff base (RAPPTH): p-Toluic hydrazide (1.5018g) and Resacetophenone (2‚4Dihydroxyacetophenone)(1.5215g) were dissolved in methanol and Refluxed in the presence of few drops of acetic acid for 7 hours on water bath with constant stirring. The resultant mixture was transferred in a china dish and allowed to cool naturally. Light brown crystals were obtained. The compound was recrystalized from water. The % of yield was 80%
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Calcium Oscillations: Synthesis and Binding Studies of Photo-reversible Calcium Chelator Harpreet Sandhanwalia December 2‚ 2011 Dr. Alison McCurdy Abstract: Living bodies maintain a homeostasis by constant communication amongst the various cells and organs. Calcium plays a very important role in controlling this network of communication and henceforth helping in carrying out many essentials functions. However the exact working of Calcium
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Multistep Synthesis of Tetraphenylcyclopentadienone In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product‚ tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield
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How to Write a Synthesis Essay Synthesis Writing: to combine the ideas of more than one source with your own. Key Features of a Synthesis Report information from the sources using different phrases and sentences; Organize so that readers can immediately see where information from the sources overlap; Make sense of the sources and help the reader understand them in greater depth. Preparing to write your Synthesis Essay You should locate two or more sources for synthesizing.
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Purpose: This experiment is used to perform a series of synthesis reactions that convert aluminum foil to alum. Alum is used in cooking‚ to treat wastewater‚ and is used in common deodorant. In this lab a series of four reactions will occur to yield alum. Calculations: Aluminum foil: 0.5035 grams Alum & Watch Glass: 21.7691 grams Watch Glass: 15.1560 grams Alum: 6.6131 gram Theoretical Yield of Alum: 2Al(s) + 2KOH(aq) + 4H2SO4 + 22H20 -> 3H2(g) + 2KAl(SO4)2 + 12H2O(s) 0.5035gAl
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The Grignard Synthesis of Triphenylmethanol Abstract: Grignard synthesis of triphenylmethanol was achieved by use of the Grignard reagent phenyl magesium brominde. The organometallic grignard reagent was synthesized by use of a reflux apparatus recrystallization techniques. Once synthesized it was used in a Grignard reaction that involved nucleophilic addition to a carbonyl in order to make triphenylmethanol. The final product was solidified and recrystallized and spectral data was
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English Language and Composition Reading Time: 15 minutes Suggested Writing Time: 40 minutes Directions: The following prompt is based on the accompanying eight sources. This question requires you to integrate a variety of sources into a coherent‚ well-written essay. Refer to the sources to support your position; avoid mere paraphrase or summary. Your argument should be central; the sources should support this argument. Remember to attribute both direct and indirect citations. Introduction:
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