Salicylate. The two compounds we will be preparing‚ aspirin (acetylsalicylic acid) and oil of wintergreen (methyl salicylate)‚ are both organic esters. An ester is a compound that is formed when an acid (containing the COOH group) reacts with an alcohol (a compound containing an -OH group). O C R1 O H O + H O C R2 R1 O R2 + H O H acid alcohol ester water Here R1 and R 2 represent groups such as CH3 - or CH3 CH2 -. The reaction type shown above may be called a condensation reaction
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and inattentive B. Case: Isabel is intelligent but failing her first period class in biology because she is constantly late to class. She wakes up at five o’clock with every intention of getting to school on time. Isabel spends three hours taking a long shower and then repeatedly changes her clothes until she "feels right." Finally‚ she packs and repacks her books until they too are just right. When she opens the front door and prepares to walk down the front steps‚ Isabel goes through a ritual of
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were oleic acid and triglyceride with one oleate ester. The yields of these compounds were 13.25% and 7.74% dry weight‚ respectively. The compounds were tested in vitro against head lice‚ comparing to the crude hexane extract of the seed. The triglyceride with one oleate ester and the crude hexane extract diluted with coconut oil 1:1. These compounds were found to kill all tested head lice in 49‚ 11 and 30 minutes‚ respectively. The triglyceride ester can be used as a marker for quantitative analysis
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audience in a subtle but artistic way. The Spanish civil war has ended. The film take a lead with a beekeeper named Fernando. Fernando has a wife named Teresa and two daughters named Isabel and Ana. The mother has a secret affair which starts to affects not only them but the entire family. When Ana and Isabel watch the movie “Frankenstein” at a traveling movie show. Ana is intrigued by the monster Frankenstein and can’t stop thinking about the monster and spirits. Continuously asking her
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turned into noodles. I felt my knees begin to buckle and I struggled to remain upright. The garish letters spelling out “Superman” didn’t fail to intimidate me. Connor caught up with the rest of the group at the gate‚ and they all stared at me. “Isabel!” Jenna hollered‚ “Are you afraid of roller coasters or something?” She smirked and held up the loser symbol. “Haha very funny. I’ve been riding roller coasters since I was five. Let’s go” I said‚ attempting to move my legs normally. As soon as I
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visitors to many parts of the country. Here are some of the areas cited in the warning (and here’s the entire State Department announcement): --There are no advisories in effect for Cabo San Lucas in southern Baja; Mexico City; San Miguel de Allende and Leon in southern Mexico; Cancun‚ Cozumel‚ Playa del Carmen‚ Riviera Maya and Tulum in Quintana Roo; the state of Oaxaca; and Merida and Chichen Itza in the Yucatan. --Americans should "exercise caution‚" particularly at night‚ in Tijuana‚ where
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We performed two procedures in which we reduced methyl acetoacetate. For the first procedure we produced a racemic mixture of Methyl (S)-3-Hydroxyacetate and Methyl (R)-3-Hydroxyacetate. For the second we produced only one of the enantiomer products depending on which enantiomer of Tartaric Acid was used. A reduction is a reaction which generally means adding more carbon-hydrogen bonds to a compound. In a reduction reaction the oxidation number of a carbon atom decreases. The opposite is an oxidation
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metabolised by cholinesterase 2-5 min onset of action Duration of action 4-8 hours (topical)‚ 24 hours for intraocular administration Parasympathomimetic that sitmulates both muscarinic and nicotinic receptors Methacholine = Synthetic choline ester‚ acts as a non-selective muscarinic receptor agonist in the parasympathetic nervous system. Used to diagnose bronchial hyperreactivity (asthma and chronic pulmonary obstructive disease).
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Katina Lucero Informative Speech Outline COMM 101 Online 6/26/2013 Autism General Purpose: To inform Specific Purpose: At the end of my speech‚ I want my audience to understand what Autism is and the effects on children. Thesis: Every person should be aware that the children with Autism are unique‚ intelligent‚ and they can see the world in a different perspective then we do. Introduction I. Found out my niece had Autism‚ and how little I knew about what Autism is‚ and what
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CHARACTERS: Kapitan Tiago or Don Santiago de los Santos‚ Tiya Isabel‚ Padre Damaso‚ Padre Salvi‚ Tenyente Guevarra‚ Don Tiburcio‚ Donya Victorina SUMMARY: On the month of October‚ Kapitan Tiago (whose whole name is Don Santiago de los Santos) is organizing a luxurious feast. It will be held in his home‚ which is located in the town of San Diego; more specifically‚ in Anloage Street. The guests arrive that evening‚ greeted by Tiya Isabel‚ the cousin of Kapitan Tiago. Padre Damaso‚ Padre Salvi‚
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