Rebecca Hardy Section 4 Ashleigh Stapleton June 18‚ 2012 Experiment 32: Identification of a Conjugated Diene from Eucalyptus oil Introduction In this experiment‚ the purpose was to prepare the Diels-Alder adduct of the unknown conjugated diene in Eucalyptus oil and determine the approximate percentage of diene in Eucalyptus oil. To discover the product of this reaction‚ isolate the adduct‚ and classify the diene from the melting point of its adduct. The unknown was one of four conjugated dienes
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water Method: 1- Fit the beaker inside the tripod‚ fill the beaker with 100ml of water after measuring it by the cylinder‚ and take the initial temperature of water by using thermometer‚ 2- Measure the mass of the first burner spirit (Methanol) and record it‚ Put the spirit burner on the heat-mat under the beaker and ignite it 3- Keep stirring the water‚ when the temperature reach 50ºC turn off the flame. 4- Reweigh the burner and workout the difference. 5- Repeat the same steps 3
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Exponential growth in petrol and diesel fueled vehicles are responsible for deterioration of air quality in cities. Because of the increase in urbanization‚ industrialization and commercial activities in the urban areas‚ the demand for transport has also been increased. In addition to it the use of personal vehicles has also increase steadily. The various principle pollutants emit from vehicles are as follows- Carbon monoxide (CO) Suspended particulate matter (SPM) Oxides of nitrogen
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http://www.rollybrook.com/carnitas-3.htm Compositional and Sensory Evaluation of Jamaican Cherry (Muntingia calabura) Leaf Tea Substitute A Thesis Presented to the Department of Food Technology College of Education University of Santo Tomas In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Food Technology Janerica C. Camacho Gracia Remedios Veronica V. Em Amy M. Tolentino Kristine U. Villaruel Dyann Aissa B. Yu March 2011 CERTIFICATE OF APPROVAL
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Behind all fallacies there is major critical thinking. Not knowing how to think critical could jeopardize your argument in reasoning. Critical thinking‚ is analyzing further into a subject to get valid points in an argument. As we all know‚ fallacies are considered flawed ways into having invalid reasons. There are many reasons why fallacies are not very good to use in an argument. However‚ since there is a great quantity of fallacies. I will only discuss two fallacies‚ Faulty Analogy and Bandwagon
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all guidelines published for this class in the Syllabus and Academic Integrity Handouts.” Purpose- The purpose of this lab was to display to us a variety of different reactions using an eclectic of things in the chemistry lab: including magnesium‚ methanol‚ and fire. This was to make what we are doing on paper in class a real life circumstance. Analysis questions 1) A) Part A 2Mg+O2 à(delta/heat) 2MgO Part B 2CuCO2 à(delta) 2Cu+CO2+O2 Part C Zn+HCl à H2 Part D CuCl2+2NaOHà 2NaCl+ Cu(OH)2
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the result 10. Repeat for the other alkanols Results: Alkanols used | Fuel used (grams) | Kilo jewels per gram (KJ/g) | Kilo jewels per mole (KJ/mol) | Class average (KJ/g) | Class average (KJ/mol) | Methanol | 1.02 | -8.2 | -262.7 | -8.4 | -291 | Ethanol | 0.77 | -10 | -435 | -12.1 | -536 | Propanol | 0.78 | -10.7 | -644 | -18.85 | -883.2 | The molar heat combustion increases with carbon chain lengths as the alkanols contains hydrogen bonding
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(Clark 2007) A polar solvent‚ such as mixtures of water and methanol or acetonitrile is also used. Non-polar compound in the solution is attracted to the hydrocarbon group due to van der Waals dispersion forces. On the other hand‚ the attraction between the polar solvent and polar molecules in the mixture being passed
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Testing for functional groups The chemistry for carbon is vast; there are in excess of ten million known carbon compounds. It is estimated that 300000 new carbon compounds are discovered each year. Organic molecules contain functional groups that are responsible for their chemical properties. Functional groups will react with certain regents in predictable ways‚ making it possible to develop diagnostic reactions to test for their presence in an organic molecule. Common functional groups found
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CHEM. RES. CHINESE UNIVERSITIES 2012‚ 28(3)‚ 415—418 Determination of Nicotine in Tobacco by Capillary Electrophoresis with Electrochemical Detection SUN Jin-ying1‚ XU Xiao-yu1‚2‚ YU Huan1 and YOU Tian-yan1* 1. State Key Laboratory of Electroanalytical Chemistry‚ Changchun Institute of Applied Chemistry‚ Chinese Academy of Sciences‚ Changchun 130022‚ P. R. China; 2. Ministry of Public Security of Jilin Province‚ Changchun 130051‚ P. R. China Abstract A sensitive‚ simple and low-cost method based
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