the laboratory. In case there is any gas evolved‚ further tests can be done to identify the gas. See Table S63.1. Observation Inference Yellow sublimate Sulphur Violet vapour and dark grey shiny sublimate Iodine Dark red sublimate Iron(III) chloride‚ FeCl3 White sublimate Ammonium halides e.g. AlCl3 Water vapour evolved Hydrated salts; hydrogencarbonates; some hydroxides Colour change Some hydrated salts Rust red residue Fe2O3 formed (from decomposition of iron compounds) Black residue
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(reference the list of simple alkanes) e. Circle the branches. f. Name and number the branches‚ forward to backward. Use the lowest set of numbers. g. if the branches are different their names are put in alphabetical order. Butyl‚ ethyl‚ methyl‚ propyl Note: If 2 identical groups = di If 3 identical groups = tri If 4 identical groups = tetra If 5 identical groups = penta If 6 identical groups = hexa If 7 identical groups = hepta 5. Consider this compound
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CHM456 ORGANIC CHEMISTRY 1 LABORATORY Contact hours: 3 hours/week Laboratory textbook: Pavia‚ Lampman‚ Kriz and Engel‚ Introduction to Organic Laboratoy Techniques 3rd Edition (2011) ** Students MUST obtain a copy of the textbook Synopsis This is an organic chemistry practical course which reinforce the theory and concepts studied in Organic Chemistry 1 (CHM456). It covers the learning of simple laboratory techniques such as reflux‚ distillation‚ extraction‚ crystallization and melting point
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The alkylation of 1‚4-dimethoxybenzene is very favorable because of the presence of two methoxy groups. The groups act as activators to electrophilic aromatic substitution because of their ability to donate electrons through resonance. This enhanced activation helps favor the initial substitution. After this‚ the ring has two methoxy groups and an alkyl group attached to it. The addition of the alkyl group further activate the ring for another electrophilic aromatic substitution. The addition of
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Chemical Engineering Science 54 (1999) 3967}3976 Uncatalysed oxidation of cyclohexene S.M. Mahajani‚ M.M. Sharma‚ T. Sridhar* Department of Chemical Engineering‚ Monash University‚ Clayton‚ Victoria 3168‚ Australia Received 13 October 1998; received in revised form 22 December 1998; accepted 23 December 1998 Abstract The oxidation products of cyclohexene "nd several applications as intermediates for the manufacture of useful chemicals like cyclohexanol‚ cyclohexenol/cyclohexenone‚ cyclohexadiene
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III addition IV substitution 4. A substance with a pleasant smell that undergoes hydrolysis to form an alcohol as one of the products is likely to be: a) sodium ethanoate b) ethanoic acid c) ethanol d) butyl ethanoate 5. The correct name for the substance with the following structural formula is: H H O H H H-- C -- C -- C --- O -- C -- C -- H ethyl propanoate
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Methyl Ethanoate combination of Methanol and Carboxylic Acid doesn’t have a strong smell and smells somewhat like water. Butyl Ethanoate formed by Butanol and Carboxylic Acid has a very sweet and fruity smell. Propyl Ethanoate formed by Propanol and Carboxylic Acid consist of a strong nail polish remover smell. Ethyl Ethanoate formed by Ethanol and Carboxylic
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painkilling drugs. 2.To determine the melting points of acetaminophen‚ aspirin and caffeine 3.To identify the separated components(acetaminophen‚ aspirin and caffeine) by thin-layer chromatography Apparatus and Reagents Used : 1. 4:1 (v/v) 1-Butyl ethanoate/ethanoic acid 2. 3M Sodium hydroxide solution 3. 3M Hydrochloric acid 4. Iodine 5. Dichloromethane 6. Ethanol 7. Anhydrous MgSO4 8. Mortar and pestle 9. Beakers 10. Capillary tubes(Melting-point tubes) 11. TLC plates 12. Painkilling
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Introduction: Dealing with chemicals is an essential part of a chemical engineer’s job. It is therefore crucial to be able to accurately identify the composition of a chemical to be able to work with it. Indeed‚ different species have different physical and chemical properties which dictate their uses and applications. Furthermore‚ this kind of analysis is important in quality control since the detection of unwanted chemicals may lead to the rejection of a product for example. In addition to qualitative
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seem like a very small area‚ three significant genes are within it. They are SEMAF‚ CTNND2‚ and TERT‚ which are short for‚ semaphorin F‚ delta-catenin‚ and telomerase reverse transcriptase‚ respectively (Kelly‚ 2013). Tests reveal that patients with more of the SEMAF and CTNND2 genes have a better IQ than patients with less of it. Therefore‚ these genes are vital for brain development. Finally‚ TERT is said to be related to physical features (Santo et al.‚ 2016). Overall‚ these three genes are important
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