though Melting point‚ TLC‚ IR‚ 1H and 13C NMR Abstract: The synthesis of the product: β-D-glucose pentaacetate is done though the acetylation using acetic anhydride with D-glucose with the help of sodium acetate. The recrystallization of the product is done though a polar solvent like water. The Result of this experiment has a percentage yield of 61% and analytical methods that are to detect the products are 1H NMR‚ 13 C NMR‚ COSY‚ FTIR (IR)‚ Thin Layer Chromatography (TLC) and Melting point
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to produce 200‚000 units of output per day. The daily wage per worker is $80‚ and the price of the firm’s output is $25. The cost of other variable inputs is $400‚000 per day. First scenario assuming that total fixed cost equals $1‚000‚000: * TLC 4‚000‚000 * TFC $1‚000‚000 * TVC 4‚400‚000 * AVC 22. * ATC 27. * WP (L) 4. * TC 5‚400‚000 * TR 5‚000‚000 TR = $5‚000‚000 › $4‚400.000 TVC PROFIT= -$600‚000 (loss)
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contents until the cell walls have been adequately broken. Transfer the mixture to a centrifuge tube to separate the sample into layers‚ to help remove the water. Once the sample is finished spinning extract the organic layer and place in a test tube. TLC: To determine which mixture acetone and hexane is the best developing solvent the first step is to make mixtures of these solvents in test tubes. In the first test tube mix one part acetone (.5 mL) and three parts hexane (1.5 mL)‚ In the second test
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also cause error to occur. Everything has an expiration date‚ depending on how old or how new the dye is‚ it could affect the outcome. 1. Why is it important to trace the solvent line as soon as the TLC plate comes out of the chamber? It is important to trace the solvent line as soon as the TLC plate comes out of the chamber in order to acquire the most accurate measurements for the experiment.
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high-altitute guide in the world. Hall is a 35 year old guy from New Zealander and had climbed the Mount Everest many times. Another expedition team that was climbing the Everest during the same time as Krauker’s group was a group led by Scott Fischer. Fischer is a 40 year old courageous guy who had variety of experience with the mountain. He even climbed the peak without supplemental oxygen in 1994. Some people Kreuker talks in the book and was climbing with are Andy Harris‚ Sandy Pittman‚ Beck
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1. Why climb Mt. Everest? a. Why do people choose to climb Mt. Everest? • Different people have different reasons. • The leaders‚ the guides and the Sherpa assistants discovered the business opportunity in guiding clients to the summit. • Since Mt. Everest is the highest mountain in the world and is a symbol of overcoming difficulties to fulfill the dream‚ most of the clients wanted to conquer it‚ especially when some of them (mountain climbers) failed to push to the summit
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constant and purity. The ester was converted to salicylic acid by base hydrolysis. The products were refluxed and recrystallized‚ to ensure maximum purity‚ and filtered‚ dried‚ and weighed. The melting point of the product was determined using a Fischer-Johns melting point apparatus. The acid then dissolved in separate beakers with 95% ethanol and water and titrated with 0.050 M NaOH‚ previously standardized with potassium hydrogen phthalate‚ through potentiometric titration. The pH after addition
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=========== ORGANIC CHEMISTRY ============ Organic Chemistry Laboratory - CH 201 (2010-2011) Experiment 4B Column and Thin-Layer Chromatography of Capsicum Frutescens L. Pigments John Cyril Abanto*‚ Vernalyn Abarintos and Clarice Gail Abella Department of Chemistry‚ College of Science University of Santo Tomas‚ Espana Street‚ Manila 1050 Date Submitted: September‚ 2010 ____________________________________________________________
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would receive an endowment from her father and her husband. This was made up of gifts and her husband under normal circumstances could not alienate this property from her. This endowment was then passed to the couples children should they have any. (Fischer‚ 42) A legal Frankish marriage was very clearly a highly complex
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On September 18‚ 2017‚ Katie Moss‚ M.S.‚ CCC-SLP‚ a speech-language pathologist from the Transitional Learning Center(TLC)‚ spoke to the class about adults who have been in traumatic accidents. Ms. Moss presented short video segments of her patients she has worked with at the TLC. The patients in the video segments Ms. Moss presented had different speech disorders as a result of brain injury because of a traumatic accident. The first video Ms. Moss presented involved a patient named JR. JR
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