acidification of salicylic acid and acetic anhydride. The objective was to convert a specific amount of salicylic acid into the same amount of aspirin that was high in purity. Furthermore‚ the other objectives were to enable students to conduct the synthesis of aspirin‚ reinforce skills or recrystallisation and the technique of melting point determination. The amount of each compound should be the same because there is a 1:1 ratio between them. The purity of the synthesized aspirin was measured by determining
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In 1886‚ Papaya was changed into ’Muñoz’ to honor Don Francisco Muñoz‚ the province’s alcalde mayor‚ and the community’s first appointed gobernadorcillo. Muñoz was annexed as a barrio of San Juan de Guimba municipality. Settlers trickled in from Bulacan and the Ilocos Region. In 1911‚ Factoria (now San Isidro town)‚ the provincial capital‚ was totally flooded. Muñoz was then considered a possible new capital of the province. At about the same time‚ the people of Barrios Muñoz and San Antonio
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receptor protein and a number of other proteins needed for lipid synthesis.(3) The second promoter of cholesterol synthesis is the hormone insulin. Insulin promotes dephosphorylation (activation of HMG-CoA reductase) which promotes cholesterol synthesis in which insulin binds to its receptor protein in the liver cell membrane and stimulate irs-1 formation.irs-1 activates HMG-CoA reductase enzyme increasing rate of cholesterol synthesis.(4) FACTORS
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Maslow’s theory has not received a great deal of support with respect to the specific things it proposes‚ namely‚ the exact needs that exist and the order in which they are activated. (Baron and Greenberg‚ 1995) The theory is related to the study explain the differences need of the individuals‚ likewise in the employee. The needs and wants of the individuals were very idealistic. An employee is trying to look for the things that can give or satisfy what they really want. Satisfaction
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this article series‚ too‚ shifting our attention from OMG’s UML 1.4 Specification to OMG’s Adopted 2.0 Draft Specification of UML (a.k.a. UML 2). I hate to change emphasis from 1.4 to 2.0 in the middle of a series of articles‚ but the UML 2.0 Draft Specification is an important step forward‚ and I feel the need to spread the word. There were a couple of reasons that the OMG improved UML. The main reason was that they wanted UML models to be capable of delivering Model Driven Architecture (MDA)‚
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Please put “Peer Review” at the top of your posting so I will see it and give you credit for it when I am grading. List your peer’s name. Answer: What was your favorite part of her/his comments? Did he/she cite the textbook if appropriate? Evaluate his/her use of online
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Protein synthesis is the process whereby proteins are produced‚ or synthesized‚ in living things according to "directions" given by DNA (deoxyribonucleic acid) and carried out by RNA (ribonucleic acid) and other proteins. As suggested earlier‚ this is an extraordinarily complex process that we do not attempt to discuss here. Following synthesis‚ proteins fold up into an essentially compact three-dimensional shape‚ which is their tertiary structure. DNA contains the instructions for a cell’s structure
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Formal Report no. 1 Synthesis of Aspirin Chemical Principles Aspirin is most widely sold over-the-counter drug. It has the ability to reduce fever (an antipyretic)‚ to reduce pain (an analgesic)‚ and to reduce swelling‚ soreness‚ and redness (an anti-inflammatory agent). Much of this is believed to be due to decreased production of prostaglandins and thromboxanes. Aspirin’s ability to suppress the production of prostaglandins and thromboxanes is due to its irreversible inactivation of the cyclooxygenase (COX)
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Synthesis Argument Do you want to have everything decided for you? Does that make you feel safe and comfortable? How about confused and concerned? Do you see too many laws that restrict your freedom? Government protects people from threats and is not to unnecessarily legislate that restricts freedom and governs morality but to leave that to the realm of individual responsibility. Government is defined by the Webster Dictionary as "the system by which a state or community is governed." In America
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The purpose of this experiment is to synthesize isopentyl ester by an esterification reaction between a carboxylic acid and an ester. Carboxylic esters‚ like isopentyl acetate‚ are normally used to create artificial flavors. In the preparation of isopentyl acetate‚ esterification of acetic acid and isopentyl alcohol occurs. Esterification is an equilibrium shift to the product side using an excess of one of the starting components. In this experiment‚ the excess reagent is acetic acid because it
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