Physical Chemistry CHM2330 Experiment F- Raoult ’s Law Experiment By: Sanah Assaad Student Number: 5267864 Partner: Jihad Arafa T.A: Didier University of Ottawa March 25‚ 2010 Objective: The purpose of this experiment is to study the total vapour pressure of ideal or non-ideal mixtures of two volatile liquids as a function of chemical composition. Introduction: For ideal mixtures of volatile liquids the vapour pressure of any given mixture may be obtained by applying Raoult
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Questions 1. For solutes that are dissolved because of intermolecular attractions with the solvent‚ state the intermolecular attractions involved. Intermolecular Attractions F There are dipole-dipole attractions and hydrogen bonding between polar acetone and polar water. J There are dipole-dipole attractions and hydrogen bonding between ethanol and water. There are also dipole-dipole attractions between ethanol and diethyl ether. L There are hydrogen bonding‚ dipole-induced dipole forces‚ and
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A Civil Action (movie) Dead child worth least of all Schlichtmann received a call from Anne Anderson because her son died 12 deaths from leukemia >> 8 are children Water from two city wells are contaminated by TCE Case was kicked from firm to firm It’s a hard case because it is most likely unproven Apology from “who?” >> the defendant is sure to have some professionals >> case might not be winnable Beatrice and WR Grace are the perpetrators Lawsuits begin with the complaint Will Cheeseman:
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Provide and Maintain Nail enhancements Task 1A Positioning of the nail technician and the client during the service It is important for the nail technician as well as the client to be properly positioned throughout the service so that the treatment is as effective as possible. Both the technician and the client should be of the same height throughout the treatment. Ensure the workstation is of relevant height and use height adjustable chairs with a good back support. This is to prevent over
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and Testube | 83.47g | -- | Flask‚ Testube‚ and Filtrate (initial) | 90.54g | -- | Filtrate (initial) | 7.07g | -- | Erlenmeyer Flask | 74.14g | -- | Erlenmeyer flask and Filtrate (final) | 74.41g | -- | Filtrate (final) | 0.26g | -- | Acetone | -- | 1.00mL | * These results show all the measurements that were taken from everything used in order to determine the analysis of the trimyristin extracted which is shown below. * Analysis: Weight of Trimyristin | 0.1g | Melting
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does to the people around you. Transition: Some people who smoke don’t know what’s in them. Body I. Cigarettes have many harmful chemicals in them. A.I am going to name a couple of these chemicals. 1. Cigarettes have acetone in them. a. Acetone is found in nail polish remover. 2. They also have carbon monoxide in them. a. Carbon monoxide is released from the exhaust of the car. 3. There is also butane in cigarettes.
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intermittently to ensure proper interaction between substances. Then it is cooled again to precipitate the product and separate it from some of the impurities. For further purification the product is recrystallized. A solubility test was performed on water‚ acetone‚ and methanol to pick a solvent for this process. For a substance to be optimal for recrystallization‚ the product has to be insoluble at room temperature and soluble at the solvent’s boiling point1. The selected solvent will allow everything to dissolve
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EXERCISE 3: DIFFERENTIAL PROTEIN PRECIPITATION Vanessa Andrea Estepa University of Mindanao‚ College of Science and Mathematics ABSTRACT: Denaturation is the disruption in the original conformation of the protein wherein the secondary‚ tertiary and quaternary structures are all affected. Denaturation is brought about by various kinds of physical and chemical means; this includes the addition of strong acids‚ heavy metal cations‚ alkaloidal reagents‚ salting out and addition of organic solvents.
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2a: Infrared Spectroscopy and Analgesic Drug Identification Abstract: To be able to understand how organic soluble compounds could be isolated from non-organic components‚ a chromatographic separation process was used. The objective of the analgesic drug identification is to isolate the organic compounds/ active ingredients in an unknown drug. The identity of the drug was determined through melting point‚ percent recover‚ and Rf values. The comparable data for acetaminophen from the manufacturer
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solvent polarity and temperature will also be looked at. Name Structure M.W. M.P. B.P. Density Toxicity Sodium Iodide NaI 149.89 g/mol 661ºC 1304ºC 3.67 g/cm3 Yes Silver Nitrate AgNO3 169.87 g/mol 212ºC 444ºC 4.35 g/cm3 Yes Acetone C3H6O 58.08 g/mol -95ºC 56ºC 0.791 g/cm3 Yes Ethanol C2H6O 46.07 g/mol -114ºC 78ºC 0.789 g/cm3 Yes 1-Chlorbutane C4H9Cl 93.57 g/mol -123ºC 79ºC .88 g/cm3 Yes 1-Bromobutane C4H9Br 137.02 g/mol -112ºC 101.4ºC 1.26 g/cm3 Yes
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