Synthesis of Aspirin Learning Goals 1. To synthesize aspirin from salicylic acid and acetic anhydride. 2. To purify the crude product by Recrystallization. Introduction Most drugs are chemical compounds which are described as "organic compounds" because they are comprised primarily of the elements carbon‚ hydrogen and oxygen. The present experiment will be the synthesis of a familiar organic compound called aspirin. The common chemical name is acetylsalicylic acid. Aspirin‚ the
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University of Phoenix Material Overview – Week Two Academic Essay Analysis Rhetorical Strategies - Part Two Compare and Contrast Essays should not be a superficial listing of similarities and differences but should have a clear purpose and be aimed at a specific audience. Compare and contrast can be an important tool to a researcher. The strategy should be used to show differences clearly and if strong parallel construction is used‚ the writer can make a convincing point. This organizing
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U‚ and C for the nucleotides guanine‚ adenine‚ uracil and cytosine) that directs synthesis of specific proteins‚ while many viruses encode their genetic information using an RNA genome. Some RNA molecules play an active role within cells by catalyzing biological reactions‚ controlling gene expression‚ or sensing and communicating responses to cellular signals. One of these active processes is protein synthesis‚ a universal function whereby mRNA molecules direct the assembly of proteins on ribosomes
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The first synthetic sweetener‚ saccharin‚ was discovered five years prior to Dulcin. The discovery of Dulcin occurred in 1883. Approximately seven years after it’s discovery‚ J.D. Reidel‚ of Berlin‚ was able to synthesis Dulcin at a reasonable cost. Once it became possible to synthesis at a reasonable cost‚ mass production of the sweetener began. Dulcin was favored over its competitor‚ Saccharin‚ because it did not possess a bitter aftertaste. For a very brief period of time Dulcin was marketed
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Synthesis Conclusion: Conclusion: As we can see‚ the sources show us that during the Enlightenment period money was very important. It shows that during the time people would do merely anything for money‚ even force their children into arranged marriages or‚ as Voltaire suggest satirically‚ sell them as a food source. Parents or even the brides and grooms themselves would arranged marriages for economic gain. This was not always the case. We have learned from She Stoops to Conquer that‚ although
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APA Style Referencing Author and date Place a comma between the author and the date in the parenthetical citation. If the author is named in the text‚ place the date immediately after the name. People with Type O blood are more likely to develop duodenal ulcers than people with Type A‚ B‚ or AB blood. (Eisenburg‚ 1978). Eisenburg (1978) found that people with Type O blood are more likely to develop duodenal ulcers than people with Type A‚ B‚ or AB blood. Author‚ date and page (short quotation)
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Abstract Introduction The acylation of the α carbon position of a carbonyl group is one of the greatest breakthroughs that has benefited chemists in organic synthesis particularly when in need of building a carbon skeleton of interest in a molecule. For one to be able perform this acylation technique‚ there are two mar approaches which are employable. The first method involves the deprotonation of the α-Carbon atom which has a pKa known to be ̴20 through the use of a strong base for instance
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References According to the APA Style‚ 5th edition The APA style consists of rules and conventions for formatting term papers‚ journal articles‚ books‚ etc.‚ in the behavioural and social sciences. This user guide explains how to cite references in APA style‚ both within the text of a paper and in a reference list‚ and gives examples of commonly used types of references. Reference Citations in the Text: Single author: Use the author ’s last name‚ year. (Morse‚ 1996) OR Morse (1996) showed
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APA – American Psychology Association- Style of Documentation Helpful hints on how to use it. APA citation style refers to the rules and conventions established by the American Psychological Association for documenting sources used in a research paper. APA style requires two elements for citing outside sources. These are the Reference Citation in Text and the Reference List. Together these elements identify and credit the sources consulted in the paper and allow others to access or retrieve this
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Purpose: To synthesize 1‚2‚3‚4-tetraphenylnaphthalene through a two-step synthesis. The aldol condensation reaction between benzil and dibenzyl ketone forms 2‚3‚4‚5-tetraphenylcyclopentadienone‚ which then reacts with a benzene formed by anthranilic acid and isoamyl nitrate in order to yield 1‚2‚3‚4-tetraphenylnaphthalene. Reaction Equation A: Synthesis of 2‚3‚4‚5-tetraphenylcyclopentadienone: A solution of 4 capsules potassium hydroxide (0.5g) and 5mL anhydrous ethanol was prepared
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