FOUNDATION IN SCIENCE INTRODUCTION TO PRACTICAL ORGANIC CHEMISTRY – MAKING AND PURIFYING ORGANIC COMPOUNDS Stage 1 – Deciding how much reagent to use Most organic reactions do not go to completion; most reach an equilibrium position with significant quantities of reactants still remaining. In addition‚ separating the desired product from the rest of the reaction mixture‚ and then purifying it‚ will result in the loss of more of the product. The amount of product obtained expressed as a percentage
Free Distillation Sulfuric acid Acetic acid
1. A physician forgets to tell a patient about the risk of combining a prescribed drug with aspirin and the patient takes two aspirin for a headache: In this scenario the extend of liability depends on the drug being prescribed‚ if the drug is dispensing in generic form with no warnings‚ then the physician could be considered liable‚ however it is still possible to make the argument that the patient would have been proactive about potential contraindications‚ and consult the dispensing pharmacy
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crystals 95% ethanol Clear colorless liquid Acetyl chloride Clear colorless liquid with gas escaping from container FeCl3 Clear colorless liquid Commercial aspirin Fine powdery white solid crystals I2/KI Deep black liquid KMnO4 Brownish liquid Phosphoric acid Clear colorless liquid Table 2. Preparation of Aspirin. Description Salicylic acid + Acetyl chloride Cloudy white liquid with undissolved white powder Mixture at room temp White cloudy liquid Mixture in ice bath
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The main problem addressed in the introduction to The Purity Myth is how the concept of virginity has been used to oppress young women. Jessica Valenti’s primary claim is that the concept of virginity is a myth designed to hypersexualize young girls and link a woman’s worth to the men that she has been with sexually‚ thereby perpetuating misogyny. Valenti believes that virginity is a social construct that should be eliminated in order to preserve the dignity of young girls and to teach them actual
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Purity is expressed as the pristine and natural state of the soul while impurity is the concealing of the natural state of the soul by corruption. Hinduism is developed from principal scriptures and rules and from this comes the understanding of the values and attitudes of this religion. Hinduism places an importance of purity in the religion that is essential to everyday life. The idea of purity exists physically‚ mentally‚ spiritually‚ and emotionally in the Hindu religion and through influential
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IB1 Chemistry Practical #8 ANALYSIS OF ASPIRIN TABLETS For a long time the bark of the willow tree (salix alba) was used as a traditional medicine to relieve the fever symptoms of malaria. In the 1860’s chemists showed that the active ingredient in willow bark is salicylic acid (2-hydroxybenzoic acid) and by 1870 salicylic acid was in wide use as a pain killer (analgesic) and fever depressant (antipyretic). However‚ because it is a relatively strong acid‚ salicylic acid has the undesirable side effect
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Today‚ aspirin is one of the most widely used medication on this Earth and has been since its popular breakout in the late 1890s. Long before we were born there was no such thing of a medication called aspirin. Instead‚ ancient people used willow leaves and bark from trees to help relieve oneself from pain and fevers. Aspirin as we come to know it in the form of an acetylsalicylic acid‚ was introduced to the world by Chemist Felix Hoffmann who was working at Bayer pharmaceutical company located in
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and Recrystallization of Aspirin Preparation and Recrystallization of Aspirin Date of the experiment: 9 May 2013 Date of submission: 23 May 2012 Date of the experiment: 9 May 2013 Date of submission: 23 May 2012 Synopsis 1. General Objective: To familiarize with the preparation of some simple organic compound and purify the compound by recrystallization. Specific Objective: The experiment is carried out to: 1.1 Conduct the synthesis of aspirin 1.2 Reinforce the
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Mary Douglas in Purity and Danger: An Analysis of the Concepts of Pollution and Taboo‚ where she explores societies views of cleanliness and purity and the different conceptions involved. Purity and Danger is well known as an outstanding text in the field of anthropology as it was recognised throughout many disciplines. Within Purity and Danger‚ Douglas gives representation to the significance of anthropological enquiries as she presents a method to comprehending rules of purity by investigating
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Love‚ trust‚ purity and dating. In this report I’ll be talking about things that is worth saying and how our human life’s changes by doing or trying these things. There the 3 love and about love‚ trust‚ purity and dating. Love Love is a force of nature. However much we may want to‚ we cannot command‚ demand‚ or disappear love‚ any more than we can command the moon and the stars and the wind and the rain to come and go according to our whims. We may have some limited ability to change the weather
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