Bromination of trans- Stilbene to form 1‚2- Dibromo- 1‚2-diphenylethane Abstract 1‚2-dibromo-1‚2-diphenylethane was produced by the bromination of trans-stilbene through the addition of hydrobromic acid (HBr) and hydrogen peroxide (H2O2). This experiment was a greener bromination of stilbene because bromine was generated in situ and ethanol was used as the solvent. The melting point (243.30°C)‚ mass (.427g)‚ and percent yield (45.54) of the crystals were recorded. The FTIR
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Myeloid tissue Is the bone marrow Why we discuss myeloid tissue/bone marrow? – because we want to study the development of blood cells. We called it HEMOPOEISIS/HEMATOPEISIS HEMOPEISIS/HEMATOPOEISIS –Blood cell formation (occurs in the bone group) Why study this? Because: there is a continuous replacement of cells they have short life span when they are in the peripheral circulation so‚ we have to study how these cells mature and differentiate Phases of hematopoeisis MESOBLASTIC PHASE
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Name: Leigh O’Neill Date: 10th February 2015 Lab Partner: Sinead Murphy Title: Resolution of Trans-Cyclohexane-1‚2-diamine Abstract: The experiment of resolution of Trans-Cyclohexane-1‚2-diamine was completed using recrystallization. This produced a percentage yield of 85% from a theoretical yield of 2.638g. Introduction: Enantiomers are identical and equal in their physical properties except for optical rotation which can be viewed by polarimetry. Diastereomers have different densities‚ melting
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The Economy of the Trans-Mississippi West‚ 1850-1900 During the mid-19th century and early 20th century‚ the promoters and government officials viewed the West as a land of opportunity and prosperity. However‚ people with economic and political power took advantages of westerners for their own benefits. As a result‚ the rich got richer and westerner suffered economy downfall. A few was benefited from railroads and federal land grants‚ while others faced several conflicts. In the end
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Trans Fats Ban Doughnuts are one of my favorite foods. I don’t eat them regularly‚ maybe once a month so they are an occasional treat for me. Darryl Townson‚ owner of “Dat Doughnut” shop in Illinois makes his living from the fried sugary goodies. Recently‚ lawmakers have been pushing for a ban on artificial trans fats. Such a ban would mean that people like Townson would have to alter the way he makes his doughnuts. Here in Washington‚ a similar bill has already been passed in King County. I
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Flowers and Acid Call them freaks‚ the underground‚ the counterculture‚ flower children‚ or just simply hippies‚ they are all loose labels for the youth culture of the 60’s that transformed life in the West as we knew it‚ introducing the spirit of freedom‚ of hope‚ of happiness‚ of change‚ and of revolution (Miles 9). The years that made up the 1960’s were some of the most exciting and turbulent years in American history. The post World War II baby boomers grew up. A president and
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Case Study 2: Analysis of ECO-Trans Project Jose Rodriguez Sothern New Hampshire University Professor Steven Coleman Project Definition Astrid Varga‚ the project manager of ECO-Trans‚ a European-based company renowned for its efforts to cut down fuel cost and to reduce C02 emissions. The firm deals with the provision of “driver aide” systems that are used in land transport equipment such as trains‚ buses‚ and transport vehicles. The EC0-Stream company carries out the analysis of
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A New Addition I remember a long time ago‚ when my dad brought home a new addition to our family. She was about six weeks old and very afraid of everything around her. She was in a new world‚ a place that was an awakening in her eyes. Her fur was as soft as a cotton blanket and her attention span lasted as long as a blink of an eye. I remember watching my mom walk into the living room‚ with her hands on her mouth as she fell to her knees. A beautiful brown and white kitten‚ with streaks of golden
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analyze data and draw a conclusion. In this experiment I will find out that in a type of water the Alka-Seltzer will dissolve faster and slower. Alka-Seltzer is one of the world’s best known antacids. Its main function is to absorb excess stomach acid. II. MATERIALS: * Tap Water - Warm Water * Cold Water - Salt Water * Acidic Water -5 cups (250 mL of water in each cup) * A whole Alka-Seltzer tablet III. HYPOTHESIS: My hypothesis is that the Alka-Seltzer tablet
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hand. From here‚ the refluxing began and ended once the bromobenzene addition was completed. The second phase of the experiment involved the reaction of the phenylmagnesium bromide with assigned carbonyl compound. Appropriate amounts of benzaldehyde‚ benzophenone‚ or methyl benzoate based on the amount of bromobenzene used should be added to a dry beaker along with anhydrous diethyl ether. The mixture was poured into the addition funnel‚ added to round bottom flask drop wise‚ allowed to reflux for
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