Abstract This experiment was performed in order to determine the molarity of a solution and the percent by mass of acetic acid‚ CH3COOH in vinegar. Acetic acid is monoprotic and belongs to the carboxyl family of organic compounds. The titration method is used to neutralize the acids by using the standardized sodium hydroxide solution. It reacts with bases which is sodium hydroxide‚ NaOH to form salt and water. The equivalence point of this neutralization reaction can be determined using a chemical indicator
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Monica Perez Experiment 8: Acetylsalicylic Acid Experiment 01/25/2013 CHM Lab- 2211 Sec 0016 Instructor: Jennifer Reed Introduction: Commonly used as Aspirin‚ acetylsalicylic acid is an analgesic (pain reliever)‚ which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment‚ we will be able to recreate
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The Steel Windpipe serves best in demonstrating how I would maintain a level of detachment in order to avoid becoming emotionally compromised in serious situations while providing patient care. Bulgakov’s work describes both the external burdens‚ as well as the internal struggle many healthcare professionals face when encountering a patient who has experienced some major trauma. This story showcases a sense of humanity and responsibility to save a patient’s life at whatever cost. The piece portrays
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The Life Cycle Hypothesis Formulated by Franco Modigliani of MIT. 1. The theory basically says that individuals plan their consumption and savings behaviour over the long term with a view of allocating incomes in the best possible way over their entire lifetimes. 2. This implies different marginal propensities to consume out of permanent income‚ transitory income (temporary) and wealth. 3. The basic idea is that individuals will spend the different incomes differently with a view
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difficult‚ to understand him being I’m form a different part of the world‚ meaning a different form of communication method‚ with a different set of rules. Form what I have read and understand the most important discussions of the linguistic relativity hypothesis have focused on grammar and lexicon which seem to be the most valid in my opinion. Why? I’m guessing it have something to do with the way we talk‚ and the influence it have on a lot of how much we understand‚ based on our vocabulary choices and
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effect of heat treatment on mechanical properties of 1050 Steel. To reveal the microstructures of 1050 steel during heat treatments. Abstract In this experiment‚ we observed how the properties of plain carbon steel vary with the heat treatment condition. We prepared six different samples in three different heat treatment configurations and performed hardness tests on them by using the Rockwell tester and observed the microscopic using optical microscope. Based on the optical microscope observation
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is still open to controversy. Does a dose of caffeine heighten one ’s mental performance‚ or does it achieve the opposite? Many experiments have already taken place in order to discover how caffeine effects a person ’s mental performance. In the Radiological Society of America ’s annual conference in December of 2005‚ Florian Koppelstatter reported an experiment in which he used functional magnetic resonance imaging(fMRI) to determine how coffee effects brain activity. Subjects were then given
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Guns‚ Germs‚ and Steel; Diseases Disease influenced a lot of the world’s history‚ how these disease reached human‚ and how over a period of time we became mutated to these diseases. It affected a lot of wars‚ and settlements‚ such as when the new world was discovered. Most of the germs from these diseases came from domesticated animals‚ and people from the Old world. Diseases have even been the cause of wars. Around 1526 the Atahuallpa had won battles in a civil war that had left the
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AN INVESTIGATION INTO FULLY MELTING A MARAGING STEEL USING DIRECT METAL LASER SINTERING (DMLS) Mark. Stanford‚ Kevin. Kibble‚ Matthew. Lindop‚ Diane. Mynors and Colin. Durnall Department of Engineering and Technology University of Wolverhampton Shifnal Road‚ Priorslee Telford‚ UK TF2 9NT ABSTRACT This paper reports on the relative capability of the EOS M250 Extended platform to fully melt an 18Ni (‘300’ grade) maraging tool steel from sub-20 µm powder. The work describes the
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Bread Mold Experiment By: Stephanie Westover PURPOSE The purpose of this experiment will be to determine how temperature affects the growth of mold on wheat bread. The researchers choose this topic because she thinks it will be beneficial to find a way to keep food from molding. Determining how long bread can be stored before molding can help save money‚ prevent illness and preserve freshness. The question the researcher will attempt to answer is how freezing
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