Recrystallization and Melting Point of Benzoic Acid Organic Chemistry 1 10/4/12 Abstract Recrystallization was done to remove impurities from the sample. The percent recovery of benzoic acid during recrystallization is 23.02%. The difference between the pure and impure samples was observed by comparison of melting points. It was found that impure sample had a lower and wider melting point range of 120.1-122.2 (C). The pure sample melting point range was 121.3-122.5 (C). These ranges helped determine
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TUTORIAL 1 -95253936900 Each of the following processes involves sampling from a population. Define the population‚ and state whether it is tangible or conceptual. A shipment of bolts is received from a vendor. To check whether the shipment is acceptable with regard to shear strength‚ an engineer reaches into the container and selects 10 bolts‚ one by one to test. The resistance of a certain resistor is measured 5 times with the same ohmmeter 8 welds are made with the same process‚ and the
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Application of Semiconductor Nanomaterials in Catalysis and Medical Sciences A Scientific Document submitted to National Center for Catalysis Research Indian Institute of Technology‚ Chennai for 10th Catalysis orientation programme-2009 By N.THILLAI SIVAKUMAR [pic] Discipline of Inorganic Materials and Catalysis Central Salt and Marine Chemicals Research Institute Council of Scientific and Industrial Research (CSIR) GB Marg‚ Bhavnagar – 364 002 Gujarat‚ India CONTENTS
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Technology Research Institute‚ Agricultural Research Center ‚ Giza ‚ Egypt *E-mail: ayman_anaany@yahoo.com Abstract The main goal of the current investigation was to use sugar cane bagasse ash (SCBA) and to compare its adsorption efficiency with Magnesol XL as synthetic adsorbents to regenerate the quality of fried sunflower oil. In addition‚ to evaluate the effect of water washing process on the quality of fried and fried – treated sunflower oil. The metal patterns of
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ORIGINAL ARTICLE Stamford Journal of Microbiology‚ December 2012. ISSN: 2074-5346 Vol. 2‚ Issue 1 Assessment of pollution caused by tannery-waste and its impact on aquatic bacterial community in Hajaribag‚ Dhaka Mahbubul Hasan Siddiqee‚1‡ Md. Saiful Islam2 and M. Majibur Rahman3 assay 1 Microbiology Program‚ Department of Mathematics and Natural Sciences‚ BRAC University‚ Dhaka-1212‚ Bangladesh; Department of Microbiology‚ Stamford University Bangladesh‚ Dhaka-1217‚ Bangladesh;
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Applied Surface Science 177 (2001) 152±157 Solution growth and characterization of amorphous selenium thin ®lms Heat transformation to nanocrystalline gray selenium thin ®lms Biljana Pejova*‚ Ivan Grozdanov Institute of Chemistry‚ Faculty of Natural Sciences and Mathematics‚ Sts. Cyril and Methodius University‚ PO Box 162‚ Arhimedova 5‚ 91000 Skopje‚ Macedonia Received 24 August 2000; accepted 31 January 2001 Abstract A novel solution growth methodology for fabrication of amorphous
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Competing Against Doping Sport is thought of as an activity that is governed by a set of rules and is engaged in competitively‚ while doping is the idea of using banned natural or synthetic substance for the purpose of enhancing performance in sport. In this paper I will argue against the fallacies presented on the topic of allowing doping in sports. I will argue that the notion of doping in sports is not based on sound moral reasoning and given the choice‚ not all athletes will
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“[Dry cleaning] cleans all sorts of....fabrics...in such a manner that nobody would ever think they had been wetted...it neither changes nor alters color‚ but it takes the dirt‚ oil‚ and grease out of silks‚ cotton‚ and wool assisted by labor.” History And an Overview In “Dry Cleaning‚ Part 1. The Process and History: From Starch to Finish‚” author Eugene Garfield noted the early history of dry cleaning. It has been studied that the Mycenaean civilization‚ which was in existence from 1600 - 1100
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Perry Making This page is designed to be read in conjunction with the cider making guide. The basic processes of cider and perry making are very similar‚ however the differances are important. References and comparisons will be made to the cider making process throughout this description of perry making. This document is organised into a number of sections. Firstly‚ the principal stages of the fermentation are described‚ followed by an overview of the perry making process‚ a discussion of the
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Effect of Greywater Irrigation on Soil Hydraulic Properties Henry Hartono Gunawan 1 INTRODUCTION The use of Greywater for landscaping irrigations is becoming common as Western Australia is experiencing the water restriction due to the current drought condition and critically low level surface water storage. Hence‚ the reuse of Greywater can utilise the on-site resource‚ conserve the water efficiently‚ and reduce the load on wastewater disposal system. As there is still lack of information
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