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 vigorously. Continue to shake the tube‚ from time to time‚ for the next 30 minutes. If
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Bibliography: Andersen‚ Glen. "The First Fuel." State Legislatures Vol. 34‚ No. 3. March 2008: 12-15. SIRS Issues Researcher. Web. 28 May 2013. Johnson‚ Robbin S.‚ and C. Ford Runge. "Ethanol: Train Wreck Ahead?." Issues in Science and Technology Vol. 24‚ No. 1. Fall 2007: 25-30. SIRS Issues Researcher. Web. 28 May 2013. Kahn‚ Matthew E. "The Green Economy." Foreign Policy Iss. 172. May/Jun 2009: 34. SIRS Issues Researcher. Web. 28 May
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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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containing salt‚ sand‚ and benzoic acid can be separated using the separate components’ solubility properties (ability to dissolve in water). Because it is known that organic compounds (such as benzoic acid) are very soluble in organic solvents‚ a hexane: ethanol mixture was used to dissolve the acid. Also‚ because it is known that sodium chloride dissolves in water‚ water was used to dissolve the NaCl. Along with separating the components of a heterogeneous mixture‚ the percent recovery of each substance
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2‚ we were investigating why the liquids Ethanol‚ Propanol‚ Water‚ Pentane and Acetone evaporate at different rates. Methanol and Butanol were not liquids investigated by our group‚ but collectively as a class we were able to record averages of rates of evaporation. Solvent Molecular Formula Boiling Point (C°) Polar or Nonpolar Intermolecular Force(s) Lewis Dot Structure Methanol CH4O 64.7 Polar Hydrogen Bonding Dipole-Dipole London Dispersion Ethanol C2H6O 78.37 Polar Hydrogen Bonding Dipole-Dipole
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in 2010‚ there group focused on the antibacterial effect (in vitro) of Moringa oleifera and Annona muricata against the gram positive and negative bacteria. The solvents that were used in the experiment were ethanol and water to extract the seeds of moringa (Moringa oleifera) and the pods of soursop (Annona muricata) with a ratio of 1:50 and 1:10 and a concentration of 50‚ 100‚ 150 and 200 μL. Vibrio cholerae‚ Salmonella enteritidis‚ Staphylococcus aureus‚ and
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fermentation in a batch culture was simulated using a dynamic model consisting of mass balances for glycerol‚ ethanol‚ biomass‚ and 11 intracellular metabolites‚ along with the corresponding kinetic expressions for the metabolism of each species. The model was then used to calculate metabolic control coefficients and elucidate the control structure of the pathways involved in glycerol utilization and ethanol synthesis. The calculated flux control coefficients indicate that the glycolytic flux during glycerol fermentation
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• Bioethanol – it used as an alternative to gas‚ it is ethanol produced from plants such as sugar cane. • Combustibility –pertains to how easily a BIT will set on fire. • Density- the quantity of mass per volume. • Distillation – is a chemical process of separating two liquid components that have different boiling points. • Ethanol –colorless volatile flammable liquid. • Fermentation – it is a process that converts sugar into acids‚ gases or
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TubeWooden Stir StickFresh‚ Soft Fruit (e.g.‚ Grapes‚ Strawberries‚ Banana‚ etc.) ScissorsDNA Extraction SolutionIce Cold EthanolYou Must ProvideContains sodium chloride‚ detergent and waterFor ice cold ethanol‚ store in the freezer 60 minutes before use. Procedure If you have not done so‚ prepare the ethanol by placing it in a freezer for approximately 60 minutes. Put pieces of a soft fruit into a plastic zipper bag and mash with your fist. The amount of food should be equal to the size of approximately
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Experiment 2 Date: 24 January 2006 Title : Crystallization of a Crude Sample Objective : Preparation of pure diphenyl via crystallization of crude diphenyl dissolved in ethanol. Structural Formula of Organic Substances Involved : Diphenyl Ethanol Apparatus : Round-bottom flask (100 mL)‚ measuring cylinder (50 mL)‚ conical flask (50 mL)‚ filter flask‚ beaker (100 mL)‚ stemless glass funnel‚ Hirsch funnel‚ capillary tube‚ long glass tube‚ watch glass‚ glass vial‚ water condenser
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