cars she plans to pay cash and own them for 5 years before trading in for a new car. Her research indicates that the trade in value for Model A after 5 years is 50% of the initial purchase price. The trade in value for Model B is 25%. Jessica has no emotional attachment to either model and wants to make a strictly financial decision. The interest rate is 6%. For simplicity assume that operating and maintenance costs for the models are identical every year. Which model is the better decision and how
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¥°. Summary of Results A. Melting point of Benzoic Acid Temperature (¡ÆC) Observation Unmelted White salt First liquid appear point 122 Grainy and shiny white Becoming all liquid 125 Clear B. Melting point of unknown #42 1st trial Temperature (¡ÆC) Observation Unmelted Shiny light yellow crystal First liquid appear point 99 Grainy yellow Becoming all liquid 101 Clear 2nd trial Temperature (¡ÆC) Observation Unmelted Shiny light yellow crystal First liquid appear point 95 Grainy
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PREPARATION OF ASPIRIN AND DETERMINATION OF THE MELTING POINT Ferrer‚ Lara Melissa V. Faculty of Engineering University of Santo Tomas Manila‚ Philippines ABSTRACT This experiment involved three steps: synthesis of aspirin‚ isolation and purification‚ and the estimation of purity of the final product. The synthesis involved the reaction of salicylic acid and acetic anhydride in the presence of a catalyst‚ phosphoric acid‚ H3PO4. When the aspirin was prepared‚ it was isolated and filtered. The percentage
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In the article published on August 3‚ 2012‚ Still Puritan After All These Years by Matthew Hutson‚ an author for the New York Times‚ Eric Luis Uhlmann conducted numerous tests on American citizens‚ finding that many Americans resemble the work ethic of Protestantism. The studies also showed that Americans solved anagrams involving religious words faster than Canadians. The last study revealed that the American minds are more approving towards prudish schools cancelling prom because of sexual dances
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The Khmer Rouge‚ a horrifying experience for the people who were there during those times. Some people were lucky to escape into Thailand but‚ the people who were not lucky were in hell. Pol Pot‚ the leader of the Khmer Rouge over threw the king of Cambodia and stated that “1975 was year zero for his country‚ resetting the culture of Cambodian people and wiping away old traditions and history so that revolutionaries could rebuild the nation.” “Banks‚ churches‚ schools‚ newspapers‚ radio‚ television
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Our iceberg is melting by John Kotter “Once upon a time a colony of penguins was living in the frozen Antarctic on an iceberg near what we call today Cape Washington.” The following summary will explain the key moments of the fable and how they relate to our lives. First‚ let’s introduce some of the more important penguins – the Leadership Council members. Louis‚ the head of the Leadership Council‚ could perhaps be considered the CEO of the penguin colony. Alice is a smart‚ aggressive member
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VI: Conclusion: The melting point of a compound is the temperature at which the solid is in equilibrium with its liquid. A solid compound changes to a liquid when the molecules acquire enough energy to overcome intermolecular forces holding them together in an crystalline lattice structure. The melting point range is defined as the span of temperature from the point at which the crystals first begin to liquefy to the point at which the entire sample is liquid. This data can be tabulated experimentally
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Postural Orthostatic Tachycardia Syndrome (POTS) From the time we are born till the time we die there is a muscle inside of us that is the root of our existence‚ it’s a muscle so dominant that we can actually hear and feel it throughout our growth‚ daily activities‚ and emotions of our everyday life. Inside our body there is a powerful muscular pump‚ which is known as the one of the main organs in the human body. This hollow‚ cone shaped‚ pump lies slightly left within the center of the chest
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The Purity and Purification of Solids Melting Points CH-337 Abstract: The purpose of this experiment was to find the eutectic point for the mixture of naphthalene and biphenyl. This was done by measuring the melting point of both pure substances and five mixtures of different ratios. The purpose of the second section was to identify an unknown sample by measuring its melting point and mixing it with two known substances and comparing them. The results suggest that the eutectic point is closest
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via the esterification of p-aminobenzoic acid with ethanol. The percent yield of crude product was determined to be 21% and the melting point was recorded at 86.2°C ± 0.2°C‚ with a 6.3% error from 92°C‚ the literature melting point of pure benzocaine. The crude product was then recrystallized to improve the purity of benzocaine and 57.4% was recovered. The new melting point range was measured at 89.1°C ± 0.3°C‚ which has a 3.15% error. The infrared spectrum of the recrystallized product was measured
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