http://www.chem-toddler.com/chemical-equilibrium/chromatedichromate.html http://ibchem.com/IB/ibnotes/full/aab_htm/18.3.htm In the experiment part (i) (a)‚ the solid copper(II) nitrate is used to dissolve in a test tube filled with half distilled water. The solid copper(II) nitrate ionize in water to form copper(II) ions and nitrate ion. Hence‚ a blue solution is formed due to the blue copper(II) ion present in the solution. When excess solid is added‚ the solution will become saturated and
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higher than have been found in other studies‚” says Jon Dobson‚ who studies magnetic nanoparticles in biomedicine at the University of Florida and was not involved in the study. There is a chance the high levels were from accidental contamination in the lab‚ in spite of the researchers’ careful steps to avoid it‚ he says. But if the high levels are simply due to the patients being exposed to high levels of pollution‚ future studies involving a control group from less polluted areas could confirm the
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Synthesis and Analysis of the Coordination Compound Pentaaminechlorideocobalt (III) Chloride Heaven Lin and Forest Lin W.M. Keck Science Department‚ Claremont McKenna‚ Pitzer‚ and Scripps Colleges 925 N. Mills Avenue‚ Claremont‚ California 91711 Abstract Through using the spectrometer and titrations‚ the amount of the coordination compound‚ pentaaminechloridocobalt (III) chloride‚ was determined through a synthesis through an oxidation reduction of cobalt (II) chloride hexahydrate (CoCl2·6H2O)
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Grignard Reaction: Synthesis of Triphenylmethanol Dominic DiRaimo Lab Partners: Roxana Hernandez Somata Thach TA: Sreya Mukherjee December 5‚ 2013 Introduction Grignard reagents are good nucleophiles as well as strong bases (Weldegirma). It allows compounds to react with acidic compounds‚ therefor is must be free from acids as well as water during the desired reaction. Another important aspect of Grignard reagent is that refluxing is necessary to
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Synthesis Paper Focus Question: What role do the Harry Potter books play in children’s education? In my freshman year in high school‚ Mr. Mehta‚ the Head of the English department‚ made some changes to our school’s English curriculum. One of these changes included introducing the fifth book of the Harry Potter series‚ Harry Potter and the Order of Phoenix‚ to our reading list. Mr. Mehta’s simple action attracted more attention than ever before! While students lauded his decision‚ most parents
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The Synthesis of Organic Aspirin ABSTRACT: The purpose of this experiment was to find out how a reaction undergoes for a globally known painkiller called aspirin‚ and to become familiar with achieving successful yields. Aspirin is synthesized from salicylic acid and acetic anhydride. Those two chemicals are mixed together along with sulfuric acid to form a crude solid. Filtration is used separate the impurities from the crude aspirin. To get purified aspirin‚ the precipitate was heated until all
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SYNTHESIS AND CHARACTERIZATION OF HIGHLY CROSSLINKED HYALURONAN HYDROGELS Newell R. Washburn1‚ Sidi A. Bencherif1‚ Abiraman Srinivasan2‚ Jeffrey O. Hollinger2‚ Ferenc Horkay3‚ Krzysztof Matyjaszewski1 Departments of 1Chemistry and 2Biomedical Engineering Carnegie Mellon University‚ Pittsburgh‚ PA 15213 3 Laboratory of Integrative and Medical Biophysics National Institutes of Health‚ NICHD 13 South Drive‚ Bethesda‚ MD 20892 Introduction Methacrylation of hyaluronic acid (HA) with glycidyl methacrylate
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synthesize dibenzalacetone by aldol synthesis. The name ’Aldol synthesis’ was taken from the words ’aldehyde and alcohol’. This is because the product of this reaction contains both an aldehyde and alcohol. The carbon-carbon bond-forming reaction is referred to as aldol addition. An aldol condensation yields many species of products if the reactant is more than one. Therefore‚ the aldehyde has to react with itself to yield one product. Procedure: Followed according to the lab manual. Results:DataValueWeight
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Lab #4 The Synthesis of Organic Polymers CHM2123‚ Section C October 21‚ 2014 Introduction: Organic polymers are macromolecules that are composed of smaller molecules called monomers. There are two main groups of polymers: natural polymers and unnatural (synthetic) polymers. Natural polymers include proteins such as cellulose and starch and are a necessity for our existence. On the other hand‚ synthetic polymers such as the polycarbonate in our lab goggles
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Synthesis of Methyl Salicylate from Aspirin Esters are a class of organic compounds. An ester compromises an organic or inorganic acid in which one or more hydroxy (OH) groups have been replaced by and alkoxy (O-alkyl) group. For example‚ the simplest ester‚ methyl formate (CHOOCH3)‚ is made up of formic acid (CHO-OH) in which the hydroxyl group has been replaced by a methoxy group (-OCH3). Similarly‚ ethyl acetate (CH3CO-OCH2CH3) is made up of acetic acid (CH3CO-OH) in which the hydroxy group
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