the first 2 tubes. Add 1 drop of 1% ferric chloride solution to each tube. Shake and note color. If impure‚ red to violet color will appear. Melting point can be used to test for purity. Melting point from a dry sample should be 135-136°C for pure aspirin. There are impurities if much less than that. Data and Calculations: Amount of Salicylic Acid 0.216g Amount of Acetic Anhydride 0.480g Amount of final product (acetylsalicylic acid) 0.144g Percent Yield: 0.144g Acetylsalicylic
Free Aspirin Carboxylic acid Acetic anhydride
Discussion phrases Asking for opinion What do you think about this problem? Do you have any ideas/thoughts about this? How do you see this problem? Is this a serious problem? What are your thoughts on this? Giving opinion I think ../ feel In my opinion‚ this is … To me‚ As far as I’m concerned‚.. In my point of view.. I strongly feel/think that.. I believe that … Agreeing I agree with Ali. I support your idea. I think you’re right. I think so. I share the same view. Strong
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Multistep Synthesis of Tetraphenylcyclopentadienone Author: Instructor: Date work performed: 10.18.2012--10.25.2012 Date work submitted: 11.01.2012 Abstract: The aim of this experiment was to perform a multistep synthesis to form tetraphenylcyclopentadienone. The first step of the reactions was to synthesize benzoin from the condensation of benzaldehyde. A yield of 28.91% benzoin was obtained. The MP of benzoin was 127O-130O C and the IR spectra displayed a carbonyl peak at 3415 cm-1
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George Bandik‚ Organic Chemistry 2 Laboratory Manual. Hayden-McNeil‚ LLC: 2012. 2. Padias‚ Anne B.‚ Making the Connections: A How-To Guide for Organic Chemistry Lab Techniques‚ 2nd ed.; Hayden-McNeil‚ LLC: Plymouth‚ MI‚ 2011. 3. Grignard Synthesis‚ Grignard Synthesis of Carbonyl Groups. http://www.bc.edu/schools/cas/chemistry/undergrad/org/spring/Grignard.pdf 3/10/12.
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Week 1 (Ch 1-2) Discussion Questions • Instead of being able to swim underwater as Garfield would like in his perfect world‚ what would your perfect world look like? Name at least five things that would exist in your perfect world. Explain. Now name your top 5 stressors. Would any of these stressors be decreased or even eliminated if your perfect world existed? Or is there no correlation between your perfect world and your top stressors? Explain. • Which do you think is more stressful:
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Affects of Hydrogen Peroxide Equivalents on Green Synthesis of Adipic Acid. Andrew R. Glessman*‚ Chase W. Turner‚ Audra Cokain‚ Jacob Kindred‚ Darryl Watkins Department of Chemistry and Chemical Biology‚ IUPU‚ 402 N. Blackford St‚ Indianapolis‚ IN 46202 aglessma@umail.iu.edu April 25‚ 2014 Figure _______________________________________________________________Abstract- The synthesis of adipic acid has been a growing topic of discussion due to the harmful impact it has on the environment
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Minimum Wage For years there has been disagreement over whether the minimum wage should be raised or not. Some believe that by raising the minimum wage‚ many Americans would be able to rise above the poverty line and have access to their dream. Others disagree saying that raising the minimum wage would only make it more difficult for businesses to pay workers and people would lose incentive to work hard. The only just choice is to raise the minimum wage so that hard working Americans can exceed
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The first day of class began with reading a syllabus. All the students sat quietly as the teacher read aloud what was to be expected. Reading more and more into it‚ the teacher mentioned that no cell phones were to be used in class…students groaning; typical right? Students had never been allowed to use their cell phones in class‚ let alone in the school. So why were they so disappointed? Teachers make that rule because cell phones distract students’ learning processes and takes away from good learning
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GDF15/MIC-1 is a product of macrophage activation‚ suggesting that it may be involved in chronic inflammatory processes (-). GDF15 is a stress-responsive member of the TGF-β superfamily and initially described as macrophage inhibitory cytokine (-). Although GDF15 has been described in many solid tumors for almost 10 years‚ the nature of its receptor is still unknown. There is some evidence of Smad signaling pathway activation‚ suggesting GDF15 may act through TGF-β receptor superfamily pathways (-)
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Wal-Mart’s Music Censorship Imagine Green Day just came up with a great album that everyone has been raving about. The excited fans decide to head over to the local Wal-Mart to grab an easily accessible copy of this album. Sadly‚ they find that Wal-Mart will not sell the album because Green Day refuses to self-censor their songs‚ which Wal-Mart demands of all artists. Wal-Mart also refuses to stock CDs with parental advisory stickers on them‚ although it should be the consumer’s choice on whether
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