Thin Layer Chromatography of the Unknown Analgesic Jessica Bajao*‚ Phoebe Abalos‚ Kevin Antiga‚ Carmelus Aseneta 3-Biology 2 College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The group used five different analgesics in this experiment: aspirin‚ acetaminophen‚ ibuprofen‚ caffeine‚ and mefenamic acid. Six analgesics were spotted on the TLC plate including the unknown. After the development of the TLC plate‚ it was placed under ultraviolet light for the spots resulted
Free Chromatography Thin layer chromatography
Fear of the Unknown Lord of the Flies By: Sam Baldwin 2012-05-22 Ms. Reis ENG30S Fear is one of the most powerful emotions that control the way any human being acts in certain circumstances. A distressing emotion aroused by impending evil and pain‚ whether the threat is real or imagined is described as fear. One of many prominent themes in William Golding ’s novel‚ the Lord of the Flies‚ is Fear of the unknown. From the beginning of the novel‚ the boys fear what they cannot see‚ the parts
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There are times in one’s life that they can look back upon and be truly proud of themselves. Laying the wreath at the Tomb of The Unknown Soldier is one of those opportunities. Not only does one get to honor all who have fought and died for this country‚ but they get to do it in a way that is remembered and cherished for the rest of their lives. And honoring these soldiers allows one to do something greater than just in their town‚ something greater than in their school‚ and something so great‚ that
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account of the American Revolution‚ muddling and radicalizing its center story as "a people’s upset‚ a change among the most heterogeneous individuals to be discovered anyplace along the Atlantic in the eighteenth century." The characters in The Unknown American Revolution "looked toward a redistribution of political‚ social‚ and religious power; the disposing of old organizations and the production of new ones; the toppling of instilled examples of preservationist‚ elitist thought; the leveling
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is used for cooking and cleaning. By definition‚ a titration is a technique where a solution of known concentration is used to determine the concentration of an unknown solution. Titrations are performed in chemistry‚ along with different manufacturing companies‚ to help determine the concentrations of acids and bases when they are unknown‚ when a neutralization reaction occurs. There are a couple important parts of a Titration that are imperative to successful results. Identifying the end point‚
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Gabi Mejia Chem 101 Section ADF Lab 4: Weak Acid Unknown Procedure: When testing the acid‚ use only between 0.2 g and 0.3 g for each trial (get as precise a measurement as you can). The general procedure is to weigh out your acid‚ dissolve it in water‚ add a couple drops of the indicator (phenolphthalein)‚ and then add the sodium hydroxide until you note a color change (from clear to pink). When the color change occurs‚ you have added enough base to completely react with the acid (the endpoint).
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Discussion & Error Analysis: By examining the unknown alcohol’s H NMR spectra‚ it can be deduced that the alcohol is 1-(3-methoxyphenyl)ethanol. There are three peaks that have a shift of ~7.0-7.5‚ one with integration values of 1‚ 2‚ and 1.This shows that the alcohol is a meta-substituted benzene ring. The singlet peak with a chemical shift of~ 4.7 ppm with an integration of 1 is from the hydrogen on the OH group. The peak at ~ 1.7 ppm corresponds to the hydrogen of the carbon that is attached
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All cocci bacteria are not gram positive‚ but this lab will examine only this kind because of their influence in human health. Staphylococcus Aureus is a gram-positive coccus bacterium found in humans. It is frequently found on the mucus membrane in the nasal cavity and on the skin. It also infects many people in the hospital‚ also called a nosocomial infection. S. aureus has a large association with clinically significant infections and
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In Cold Blood Analysis Essay: Persons Unknown In part two of Truman Capote’s thrilling masterpiece‚ In Cold Blood; Persons Unknown‚ religion is observed repetitively throughout the chapters‚ from the frightened town of Holcomb in the aftermath of the murderers‚ to the hasty escape of the murderers‚ Perry and Dick. The second section of the book begins with a town paralyzed with fear since the recent murders of the honorable Clutter family‚ because “Of all the people in the world‚ the Clutters were
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Andrew Santilli Prof. Dettmer ENGL 1220-c1603 March 4‚ 2015 The Battle against Big Brother The poem “The Unknown Citizen”‚ by W.H. Auden‚ is about the ideal person that the government wants in their society. The man does everything the right way and always agrees with the government‚ whether they are at war or they are at peace. Although the man is a perfect citizen to the government‚ they do not even know what his name is. At the top of the poem‚ they refer to the man as “JS/07/M/378”(343) and
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