EXPERIMENT A PREPARATION OF ASPIRIN Abstract This report gives a detailed account of the experimental preparation of aspirin in a laboratory environment as well as some basic industrial background on the product. It also contains information about safety precautions put in place to ensure the safety of the team who carried out the experiment. All results obtained have been included as well as a detailed analysis of what they represent alongside any improvements to the method used. Introduction
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For a second means of visualization‚ iodine vapor will be used Hypothesis I predict that the polar substance will be close to the surface but ‚the nonpolar substance will move along with the solvent. Reaction /setup. Reagent>> Reagent Molar mass Poiling point Melting point Density Refractive index Safety Data methylene chloride 84.94 g/mol 40 C -97C 1.325g/cm3 Flammable Ethanol 46.07g/mol 78.3C -117.3C 789.0kg/m3 Flammable Acetaminophen 151.16g/mol
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-1Determination of an Unknown Liquid (2-butanol) Through Fundamental Analysis Lee Billips Department of Chemistry‚ Shippensburg University‚ 1871 Old Main Drive. Shippensburg‚ PA‚ 17257. Abstract: The identification and characterization of unknowns are an important part of organic chemistry. It is fundamental to know experimental methods to deductively identify compounds (1) . The determination of unknown #6 (2-butanol) was identified by a series of test; first taking the boiling point (94-96
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the solutions in an ice bath. Pure acetanilide was the product after the second crystrallization which was obtained by finally removing the impurities through filtration. The computations performed in this experiment are determining the limiting reagent‚ theoretical yield and percent yield. INTRODUCTION Impurities are common in compounds most especially organic ones that came from natural origin. There can be combinations of soluble‚ insoluble and colored impurities. Recrystallization is
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The live frog would be placed inside the bottle and will amend itself in such a way that its nose remains above the kerosene layer. Concurrently‚ a reagent bottle would be filled with water and have a layer of kerosene on the surface. This will serve as the control. A vial containing NaOH together with filter paper saturated with alkali will be placed into the animal chamber. A bent tube would be is
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compound‚ either a primary‚ secondary‚ or tertiary alcohol may be synthesized. This is seen in Figure 1. But before the actual Grignard reaction occurs‚ another mechanism must be taken into consideration – the formation of the Grignard reagent. The Grignard reagent is synthesized by adding an organic halide‚ alkyl or aryl‚ to magnesium in an ethereal solvent. Common halides used are iodides and bromides‚ although occasionally chlorides may also
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Identifying Organic Compounds 2. Purpose/Problem: I am doing this experiment to find out what kind of organic compounds are in test tubes A‚ B‚ C and D. I am curious to know if substance D was the lipid because it seemed thin and had a slightly yellow tint of color to it. 3. Research: In my research I was informed about facts and appearances of lipids. First of all lipids are non-polar compounds‚ thus they won’t dissolve in water. This is also known as being hydrophobic. They are made with one
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Aldol Condensation Formal Abstract: An aldol condensation reaction was performed on acetophenone using p-anisaldehyde and sodium hydroxide as a base. This produced trans-p-anisalacetophenone in the form of a fluffy yellow crystal. The reaction was performed in a test tube and sodium hydroxide was added drop by drop followed by recrystallization and vacuum filtration. In order to verify the presence of the ketone 2‚4-dinitrophenylhydrazone was synthesized and reacted with trans-p-anisalacetophenone
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presence of monosaccharides by using the Benedict’s test Test for the presence of starch‚ a polysaccharide‚ by using the Lugol’s iodine test Test for the presence of lipids by using the Sudan test Test for the presence of proteins by using the Biuret reagent test Determine the identity of an unknown substance by detecting the presence of organic macromolecules using the above tests Introduction Biological macromolecules are defined as large molecules made up of smaller organic molecules. There are
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Synthesis of Banana Flavor CHEMISTRY 200L EXPT 02 PAGE 01 - 11 Gerome B. Vallejos*‚ Ellis Mika C. Trino‚ Jahn Camille B. Valdez‚ Ariza Yamashita Department of Biological Sciences‚ College of Science Group 11 Corresponding author: gerome_911@yahoo.com Abstract The purpose of this experiment was to synthesize isopentyl acetate via Fischer esterification reaction between acetic anhydride and isoamyl alcohol‚ using concentrated sulfuric acid as a catalyst. This reaction is characterized by the combining
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