Barry Allahyar Dr. Dodd CHEM 2122 2010-09-16 Experiment 19: Fischer Esterification‚ Conclusion The objective in this experiment was to efficiently perform an Fischer esterification of 1-butanol and acetic acid to form water and n-butyl acetate‚ and to confirm the esterification using IR spectroscopy analysis. It was found that 0.734 grams of n-butyl acetate was formed with a percent yield of 61%. The product was confirmed using IR spectroscopy and boiling point confirmation. The reaction mechanism
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2. Preparation of ester via ion exchange resin The Lewis or Brønsted Acid – Catalyzed esterification is also know as Fischer Esterification which a carboxylic acid reacts with an alcohol to yield an ester; typically in equilibrium. The position of equilibrium can be influenced or shifted by adding more of the acid or alcohol depending on the intended direction. The Fischer Esterification mechanism involves a series of completely reversible steps: an initial protonation of the carboxyl group‚
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must ensure everyone’s well-being. Scott Fischer failed to fulfill his responsibility as a guide‚ as his negligence was partially responsible for Ngawang’s death. As previously mentioned‚ when Scott Fischer was descending from Camp Two to Base Camp‚ he recognized that Ngawang was exhibiting some dangerous symptoms and instructed him to descend to Base Camp (Krakauer 112). While this in itself is the responsible thing to do‚ it is unclear that Scott Fischer ensured Ngawang was descending to Base Camp
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In what ways do predominately good characteristics become deadly during the course of the narrative. Throughout the personal account novel Into Thin Air by Jon Krakauer‚ there are fierce qualities which has mainly transformed from whole climbers’ satisfactory. Loyalty and teamwork invent whole members on Everest to experience hardships. In spite of inexperienced clients’ limitation‚ guides keep on pushing themselves to achieve their purpose. Due to all members in this expedition participate with
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(a) Draw the structure of the trisaccharide: D-mannose-‚β (1‚3)D-glucose-α (1‚6) D-galactose using the Haworth projections. D (b) Give the names of two (2) biologically important trisaccharides and list dietary sources. E F 11. Using Haworth or Fischer projection formulae of named sugars‚ explain the following G terms: a) anomers b) epimers c) diastereoisomers 12. Outline the sorbitol-aldose reductase pathway. Why is this pathway more active in diabetic individuals than in healthy
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paint colors symbolized the pain that bobby was feeling as he got older or during his coming of age. The colors of the paint were blue‚ red and black. Those colors are usually on bruises on our bodies. When Bobby was painting his scene he started crying‚ which was showing the pain that he was in because he couldn’t find himself in his trapped up "child" body. Inside of Bobby’s body was his new self‚ his self that is coming of age. His more grown up self. Bobby used the cans of spray paint to show
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the 1920’s‚ was a sport that was just as popular as football and baseball‚ and was increasing in viewers and players all over the world. Bobby Jones was the greatest golfer both on and off the course‚ however‚ he did have a few issues that he learned from. Bobby Jones won more than half the tournaments he entered. Jones was considered golfs first superstar. Bobby Jones was one of the greatest golfers of all time‚ the man who brought about the masters‚ and he even called penalties on himself when he
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possession of the person‚ thus causing bad behavior. The ancient Romans believed that human behavior ebbed and flowed with the phases of the moon. The word ’lunacy‚’ which is derived from the Latin word ’luna’ for moon‚ reflected that belief. Bobby Joe Long through his span of terror he raped over 50 women and killed 10. He grew up with an extra x chromosome causing him to grow breast through puberty. This is the start of him building up that anger and taking it out on women. Him being teased
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considered to be healthy‚ with ROE at 14%‚ Gross Profit Margin at 28% and Current Ration at 10.9% for 1995. David Fischer‚ Treasurer arranged for a line of credit of $3.5million with the Hudson Bank and presented the bank with projected statements. The first assumption made Mr. Fischer when he prepared the projection financial statements The first assumption made by Mr. Fischer when he prepared the projected financial statements is that sales would continue to increase during the seasonal period
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How did bobby come of age? Bobby was forced to grow up when he got hid girlfriend Nia pregnant. He was told by different people that he had no childhood anymore. This essay is about Bobby coming of age. The wall is supposed to be a symbol of bobby and finding his identity. Bobby is spray painting about his flashbacks while trying to find his identity. The first flashback he has is when him and K-boy were flying kites. The second flashback he has is J.L and him were at the museum and then they were
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