Organic Lab Part 2 Experiment 7: Diethyl n- Butylmalonate Lab Partner: Reference: Williamson K.L.‚ & Masters‚ K.M. (2011).”Diethyl n- Butylmalonate”. Macroscale and Microscale Organic Experiments ( 6th edition pp. 531-534)
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COORDINATION COMPOUNDS: * FLEXIDENTATE CHARACTER OF POLYDENTATE LIGANDS; * Poly dentate ligands have flexi dentate character in the sense that all donors atoms may not form coordinate bonds with the central metal atom or ion. For example; EDTA which is the hexa dentate ligand also acts as tetra dentate or penta dentate in certain complexes. Similarly sulphate ion‚ which is a bi dentate ligand‚ also acts as a mono dentate ligand in certain complexes‚ e.g. in [Co(SO4)(NH3)5]Cl. * LABILE
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HOCH2CH2OH ANS: 1‚ 2-ethanediol or ethylene glycol 8. Name: ANS: allyl alcohol or 2-propen-1-ol 9. Name: ANS: hydroquinone or p-dihydroxybenzene or 1‚4-benzenediol Exhibit 17-1 Rank the following groups of compounds from most acidic (1) to least acidic (4). Place the number corresponding to the compound’s relative rank in the blank below the structure. 10. ANS: 11. ANS: 12. ANS: 13. Explain why nonafluoro-2-methyl-2-propoxide
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SEPARATION OF POWERS & JUDICIAL ACTIVISM The doctrine of Separation of Powers deals with the mutual relations among the three organs of the Government namely legislature‚ executive and judiciary. The origin of this principle goes back to the period of Plato and Aristotle. It was Aristotle who for the first time classified the functions of the Government into three categories viz.‚ deliberative‚ magisterial and judicial. Locks categorized the powers of the Government into three parts namely: continuous
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Organic Chemistry/Biochemistry 1: Compounds Important to Life • Biologists classify compounds into organic compounds and inorganic compounds. Organic Compound: a compound that is derived from living things and contains carbon Inorganic Compound: a compound generally derived nonliving things • Water Water is an inorganic molecule with unique properties that make it one of the most important compounds for living things. In the water molecule (H2O)‚ the hydrogen and oxygen atoms bond
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Objectives 1. To separate a mixture of an acid and a neutral compound into its component by extraction. 2. To determine the melting point and the yield of the benzoic acid and the unknown sample. 3. To determine the unknown sample whether is is Trimethylmethanol or 1‚2‚4‚5-Tetrachlorobenzene. Introduction Extraction is a process of transferring a solute from one solvent to another. It is usually used to separate one or more components from a mixture. Diethyl ether‚ dichloromethane
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envy. The public is constantly bombarded with the idea that organic products are better. Perhaps this is true‚ but maybe it is brilliant marketing simply selling a status symbol. Envy can come from a neighbor’s luscious‚ organically grown front yard to the hybrid vehicle a co-worker drives‚ to the organic foods that consumers in a higher financial echelon seem to be able to only afford. Is this envy justifiable or is the notion of organics and its superiority a tactic of propaganda to boost the already
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Preparation of an Alkene by dehydration of an alcohol in the presence of a catalyst. Calculate the percentage recovery of products. Test for purity and identification of products. Abstract Cyclohexene and cyclohexanol are both colourless aromatic compounds. The major difference between the two is the presence of the hydroxyl group present in cyclohexanol. This hydroxyl group can be removed by a process known as dehydration which results in the production of cyclohexene at the end of the dehydration
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Extraction of caffeine from tea bags ABSTRACT Caffeine extraction from the commercial tea leaves (Lipton Yellow Label Tea) that was done is multiple extraction. 4 tea bags were used in the experiment; tea leaves were weighed having 8.5333 grams. The leaves were boiled in a beaker with 150ml of water; the aqueous tea extract was transferred in a seperatory funnel mixed with DCM (20ml)‚ done thrice. The DCM layer was washed with 20ml 6M NaOH in the seperatory funnel; the organic layer was dried
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Perez Professor A. Madsen English VO1 A 6 November‚ 2012 Is Organic Food Worth the Extra Cost? With technology reigning‚ it’s no wonder that in today’s world‚ food is being processed more quickly and efficiently to feed millions of mouths a day; however‚ there are also a handful of people who decide not to eat processed foods which is why in recent years‚ organic foods have begun to rise in popularity. Most people purchase organic foods because they believe it is healthier for them and that it
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