the trans‚ trans-1‚4-diphenyl-1‚3-butadiene‚ which is formed by a Wittig reaction along with the cis‚ trans isomeric diene. The reaction is carried out in two steps. First the Wittig salt is obtained through a simple nucleophilic displacement of chloride ion by triphenylphosphine. When treated with base‚ the Wittig salt forms a ylide which is a carbanion that acts as a nucleophile and adds to the carbonyl group. In this experiment‚ cinnamaldehyde is used as the carbonyl compound and yields mainly the
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a pure stone composed of just one of these substances". Bile is a greenish-brown liquid produced in the liver then stored in the gallbladder which is use to digest fat. Bile contains water‚ cholesterol‚ fat‚ bile salts‚ proteins and a waste product call bilirubin. If the bile has too much cholesterol ‚ bile salt‚ or bilirubin‚ they hardens into stones. There are two types of Gallstones. The first and more common type is known as the Cholesterol Stone‚ which accounts for 80 percent of all cases
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Brooke Thomas September 13‚ 2012 Separating Salt and Sand Lab Report Separating components of a mixture of salt and sand and calculate the mass of each. Salt is soluble and sand will sink to the bottom‚ you can separate the rest with filtering and distillation (boiling). If salt and sand are a mixture‚ then we can separate them by physical processes. Materials Ring with ring stand Funnel Wire triangle Stirring rod Filtering paper Beakers (400mL and 250mL) Rinse bottle Evaporation
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The film “Salt of the Earth” by Michael Wilson is a 1954 film that shows the prejudice ways against long time resident Mexican-American workers. It takes place in a small town in New Mexico. After a mining accident‚ workers began protesting the unfair wages and serious hazardous working conditions. A man by the name of Ramon helps the workers organizing the protest but is also found treating his wife Esperanza unfairly as well and that was a concern because why try and protest about someone being
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Memorandum To: Urban Planning Department From: Name Subject: Rise of Temperature in Urcity Date: Introduction Agricultural areas all over the world are feeling the effects of suburb expansion. The cities growth is having an effect on the ability of land‚ water‚ and animals. With city growth will create problems such as climate‚ land‚ and geographical changes (Hillel‚ 1995). Critical Findings The agricultural areas of UrCity are being forced further out into the desert basin due
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Melting Point and Boiling Point of Organic Compounds Bongo‚ Sayre‚ J1 1Student‚ Organic Chemistry 1 Laboratory / B11‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapúa Institute of Technology ABSTRACT The melting point of a substance is the temperature at which the material changes from a solid to a liquid state while the boiling point is the temperature at which it changes from liquid to solid. In this experiment‚ the main objectives were to determine the effects of the following
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Effect of Temperature on Cricket Respiration Crickets are ectotherms that rely on their environment as a source of heat for their metabolism. Warmer temperatures allow crickets to respire at a greater rate. Respiration rate (ppm/sec/g) 1.2 1 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 35 40 45 Temperature (°C) Figure 1: Respiration rate (ppm/sec/g) of crickets at 6 different temperatures (°C). Values are means of 6 respiration rate measurements. Error bars represent
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atmospheric pressure is suspended from the ceiling of a large room. The steam temperature entering the pipe is 120 oC‚ and the air temperature is 20 oC. The overall heat transfer coefficient on the outer surface of the covered pipe is 10 W/m2.K. if the velocity of the steam is 10 m/s‚ at what point along the pipe will the steam begin condensing and what distance will be required for the steam to reach a mean temperature of 100 oC? Question 2: Consider a horizontal‚ thin walled circular tube
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This book was chosen for review because I was looking for a book that has a history of salt and how it affects us today. Mark Kurlansky‚ the author of this book‚ earned a BA in Theater from Butler University in 1970. He has worked as a playwright at Brooklyn College‚ a commercial fisherman‚ a dock worker‚ a paralegal‚ a cook‚ and a pastry chef. He worked as a journalist for many companies which are‚ The International Herald Tribune‚ The Chicago Tribune‚ The Miami Herald‚ and The Philadelphia Inquirer
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Mahatma Gandhi proposed a non-violent march protesting the British Salt Tax‚ continuing Gandhi’s pleas for civil disobedience. The Salt Tax essentially made it illegal to sell or produce salt‚ allowing a complete British monopoly. Since salt is necessary in everyone’s daily diet‚ everyone in India was affected. The Salt Tax made it illegal for workers to freely collect their own salt from the coasts of India‚ making them buy salt they couldn’t really afford. Return to "India under British
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