Abstract: The goal of this experiment was to synthesize aspirin. In this experiment aspirin‚ also known as acetylsalicylic acid‚ was synthesized from salicylic acid and acetic anhydride. In the reaction the hydroxyl group on the benzene ring in salicylic acid reacted with acetic anhydride to form an ester functional group. This method of forming acetylsalicylic acid is an esterification reaction. Since this esterification reaction is not spontaneous‚ sulfuric acid was used as a catalyst to initiate
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Rebecca Boreham 7/1/14 Chem 2423 Experiment #5 Synthesis of Aspirin Elizabeth Ajasa Kaylee Seymour Lauren Hatfield Suveda Perikala Introduction/ Purpose Aspirin is the most commonly used drug in the United States. Forty million pounds are produced each year. The chemical name for aspirin is Acetylsalicylic acid. Aspirin is a pain reliever and a fever reducer. Aspirin originated from the bark of a White Willow Tree. Chewing the bark however is extremely acidicand irritates the mucous membranes
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(Source F). Roberts also goes on to affirm‚ “... in the United States‚ 80 percent of us live in large‚ densely populated urban areas… typically hundreds of miles‚ often thousands of miles‚ from the major sources of production” (Source F). Modern society has moved away from rural areas to urban cities far from the production of food. These choices make it increasingly difficult for some to take part in this movement. Dueling choices have become a major roadblock for many who strive to take part‚ and
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shall the United States do to prepare for the possibility of a biological attack? In order for the United States to be prepared for a terrorists attack with biological usage‚ they shall take the necessary precautions in order to protect their country from a possible microorganism battle. By taking exclusive precautions such as testing the effects of certain bacteria‚ the United States can be well prepared and possible prevent a biological warfare. When observing the usage of biological weapons used
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Experiment # 3 Acetylsalicylic Acid Introduction: The purpose of this experiment is to create and isolate pure acetylsalicylic acid from the substances salicylic acid and acetic anhydride. Then one will find the melting point to determine purity. Procedure: Make a hot bath. Weigh some salicylic acid and place in conical vial. Add .480mL of acetic anhydride and a drop of concentrated phosphoric acid. Drop in a magnetic spin vane and attach air condenser to vial. Partially submerge it in
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literature that shifts one’s perspectives include The Ones to Walk Away From the Omelas (1991) by Ursula K. Le Guin‚ Salvation (1940) by Langston Hughes‚ and Fever 103 (1963) by Sylvia Plath. Literature prompts one to think about the piece they are reading. Ursula K. Le Guin’s The Ones to Walk Away From the Omelas (1991) invokes the reader to dissect the piece and unearth exactly what Le Guin is attempting
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defining and tracing human nature through evolution and present times. Evolutionary studies address the description of human descent from primates. These studies seek to outline the sequence of changes and mechanisms of action that make up the evolution of humans from primates. The general theory of evolution is used to reconstruct history with facts and evidence from fossils and other remains. Endocrinology is the study of how hormones affect human anatomy and physiology‚ behavior‚ and cognition
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helping the USPS keep up with all the new technology is to increase services and give their customers more options. People are choosing other ways because postal services aren’t as efficient as the internet. According to Source A‚ they are dropping from six- to five-day delivery. With the lack of faith in their services and drop in delivery days‚ the number of customers will probably decrease due to the slow services. The USPS should be providing a seven-day delivery service so their customers can
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can. It was important to place the metal chimney around the candle so that minimal amounts of heat would escape; having too much heat lost to the atmosphere would cause extra error in the calculations. The assumption made was that all heat released from the candle was absorbed by the water‚ and that none of the heat was lost to the air or absorbed by the can. The small holes at the bottom of the chimney allowed some oxygen to reach the flame‚ since oxygen was required to fuel the reaction. During
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about St.Francis Assisi who acted like a God and saw in the poor and sick‚ praised all creatures as brothers and sisters under God‚ became a peacemaker and a bridge builder during the time of the crusades. In addition Pope Francis’ name originated from the name St.Francis. "The issue of climate change sees little traction because legislators simply talk past one another with no genuine attempt at dialogue"‚ this quote means that the people who make the law does not attempt to talk about the issue
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