Separation and Identification of Organics from an Aqueous/Organic Environment through Physical Manipulation Date Lab Performed: Nov. 11/2013 Date Lab Submitted: Nov. 18/2013 Introduction We conducted this experiment to investigate the technique of liquid / liquid extraction‚ the miscibility of organics and water and the effect of a mixture of compounds in methylene chloride versus pure compounds retention time as introduced to a Gas
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ethanol/acetone Recrystallize Characterization of aldol product Perform this test on both unknown compounds Add 1 drop of the unknown compound to a test tube and add 1 mL of acetone Then Add 1 drop of the chromic acid-sulfuric test reagent directly into the solution. Shake the mixture A green bluish green precipitate appears within 1 min if the unknown compound is an aldehyde (Aliphatic aldehydes give precipitates with 15 s whereas aromatic aldehydes usually take 30-60s. Acetone and other
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Materials: ● ● ● ● ● ● ● ● ● ● ● 1000 ml beaker/2 gallon tank air pump air stone tubing eye droppers 10 ml pipettes graduated cylinders small petri dishes dissecting scopes/hand lenses beakers stopwatch live brine shrimp Lysol Bleach vinegar acetone (nail polish remover) Procedures: Place live brine shrimp in a small aquarium tank or a 1000ml beaker with an aerator. Place 2 petri dishes at each lab table. Three tables will be working on sample A and the other half working on sample B
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experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol (SN1) Bromobenzene NR NR Bromocyclopentane X 2 sec Bromocyclohexane NR 4 sec 2-bromobutane 5 min 2 sec 2-chlorobutane
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in the Organic Laboratory. In Abstracts of Papers‚ 225th ACS National Meeting‚ New Orleans‚ LA‚ March 23−27‚ 2003; American Chemical Society: Washington‚ DC‚ 2003; CHED-1277. (2) Swearingen‚ L.; Florence‚ R. T. The Solubility of Sodium Bromide in Acetone. J. Phys. Chem. 1934‚ 39 (5)‚
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Methodology The reagents used for this experiment were the following: * Methyl red * 0.1M Nitric Acid * 0.5M Copper sulfate – sulfuric acid mixture * 0.1M Sodium hydroxide * Acetone * Distilled water The apparatus used were the following: * Phywe Transference Number Apparatus * Analytical Balance * Buret * Beaker * pipet The experiment starts off with the preparation of the set-up for the transference vessel. Fill the double U-tube with 0.1M Nitric acid
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1. What is the ideal solvent for crystallization of a particular compound? What is the primary consideration in choosing a solvent for crystallizing a compound? volatile in order to be easily removed from the purified crystals. In selecting a solvent consider that like likes like. Polar compounds dissolve polar compounds and non-polar compounds dissolve non-polar compounds. Solvent will dissolve a large amount of the impure compound at temperatures near the boiling point of the solvent the compound
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GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1) to learn the general theoretical aspects of gas chromatography as a separation method‚ 2) to learn how to operate gas chromatographs specific to COD‚ 3) to become familiar with using the gas chromatograph (GC) to qualitatively identify components of mixtures‚ 4) to be introduced to and to interpret the quantitative data available via gas chromatography‚ 5) to gain insight into how the GC technique is used
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Organic Chemistry I – CHEM 201-DL01 September 26‚ 2014 Organic Chemistry Experiment 4B Lab Report Extraction of Organic Compounds From Natural Sources: Extraction of Trimyristin From Nutmeg Introduction The purpose of this experiment is to illustrate how a solid natural product can be extracted from its natural source through the use of an organic solvent. Natural products are organic compounds that are synthesized by natural biological processes in plants‚ animals
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the Claisen-Schmidt reaction. Dibenzalacetone is readily prepared by condensation of acetone with two equivalents of benzaldehyde -26 -95 113.9 1. Weigh 0.212 g of pure benzaldehyde directly into a 10 x 100 mm reaction tube. 2. 2. Add 1.6 mL 95% ethanol and 2 mL of 3M sodium hydroxide solution. Then add 0.058 g of acetone to the reaction mixture. 3. Cap the tube immediately with a septum‚ and shake the mixture
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