McDonalds is a worldwide chain that tortures its animals‚ cuts the lifespan of its customers and taking over the world. This is why I believe it should be banned. First‚ let’s start with some statistics: * Last year‚ the company raked in a huge 28 billion US dollars; there are over 33‚000 stores worldwide. Americans consume approximately 1 billion pounds of beef at McDonalds a year- that’s the equivalent of 4 million average weight two year old children. * McDonalds doesn’t follow FDA standards
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Title: Thin-Layer Chromatography Objectives: Part1: 1. To learn the technique of TLC and the visualization of colourless components. 2. To identify an unknown drug by a TLC comparison with standard compounds. Part 2: To learn the separation technique by using Thin Layer Chromatography plate in separating a mixture of compounds into individual pure compound by using Spinach Leaf. Introduction: (i) General Concepts Chromatography is a common and powerful method used to separate and analyze complex
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CLASSIFICATION TESTS A. Acids There are relatively few suitable tests for carboxylic acids. Classification is based mostly upon solubility tests. If the compound is water soluble‚ test the aqueous solution of your compound with pH paper (also check the pH of the original water). If the compound is water-insoluble and it dissolves in 5% (1.5M) sodium hydroxide and 5% NaHCO3 solutions as performed in your solubility tests‚ it can be classified as a carboxylic acid. Establish an equivalence value
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component mixture by extraction 4. Completion of experiments from day 1 to 4 5. NMR workshop 6. Sandmeyer Reaction: Preparation of p-chloronitrobenzene 7. Synthesis of benzilic acid from benzil 8. Aldol Condensation: Preparation of ethyl cinnamate 9. Isolation of caffeine from tea 10. Completion of isolation of caffeine from tea 11. Catchup day and completion of experiments School of Chemistry University of KwaZulu-Natal‚ Westville Campus OCCUPATIONAL
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Discuss different strategies for producing wine with low or no SO2. Is there global demand from consumers for such wines? SO2‚ sulfur dioxide has been considered as one of the essential additives for making sound wine‚ which acts as antioxidant and antiseptic. History of sulfur in wine dates back to Roman times when they discovered that wine was kept fresh by burning sulfur candles inside empty wine vessels. However‚ the number of wines produced with low or no SO2 is increasing in these 10 years
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CHAPTER I INTRODUCTION Background of the Study Mangrove swamps are forested intertidal ecosystems that occupy sediment-rich sheltered tropical coastal environments. By trapping and stabilizing fine sediments‚ mangroves control the quality of marine coastal waters. Aside from maintaining coastal food webs and populations of animals‚ mangroves have an important role in pollution control through their absorptive capacity for organic pollutants and nutrients‚ and they play an important role in storm
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trifloxystrobin and 50% tebuconazole) were supplied by M/s Bayer Crop Science Limited (Mumbai‚ India). The sorbent PSA (Primary secondary amine‚ 40µm particle size) was procured from Agilent Technologies (USA). HPLC grade acetonitrile‚ acetone and ethyl acetate were supplied by Merck (Mumbai‚ India). Analytical grade sodium chloride (NaCl) and anhydrous magnesium sulfate (MgSO4) was obtained from Merck. Anhydrous magnesium sulfate was activated in a muffle furnace at 400 ºC for 6 hr before to use and
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Introduction The Diels-Alder Reaction is a reaction used in organic chemistry that builds rings very efficiently (1)‚ this cycloaddition process allows for the stereoselective formation of cyclohexene rings possessing as many as four contiguous stereogenic centers (3). This reaction occurs without intermediates‚ in a single step‚ which explains the stereospecificity due to substituents not being given the chance to “switch around”. (1)These six membered rings are synthesized by reacting a dienophile
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13. ORGANIC CHEMISTRY IV) ALKYNES SYNOPSIS Alkynes are commonly known as acetylenes. Acetylene is the simplest and important member of the alkyne series. • Alkynes contain – C ≡ C – • General molecular formula of alkynes is CnH2n–2 • Triple bonded carbons are ‘sp’ hybridized and greater s – character is associated with it. • Alkynes will exhibit chain‚ position and functional isomerism. • Their functional isomers are alkadienes and cyclo alkenes. • The minimum number of carbons required to exhibit
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1.2. Herbal Drug Substitution The drug which is used as a substitute of the original drug in its absence is referred as Abhava Pratinidhi Dravya in classical texts. This concept about the usage of a substitute drug was well mentioned by Acharya Bhavamishra in his classical work Bhavaprakasha. Bhavaprakasha is an important treatise on Ayurveda being counted as one of the LaghuTrayi (Three minor treatises)‚ others being Madhav Nidan and Sharangdhar Samhita. It is comprehensive in nature containing
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