CHEMISTRY 140A NAME (please print) â y MIDTEHM EXAM FrRsT ’ ` LAST OCT 29‚ 2012 Sofomons 10”’ ed (Cp 1 - 4) SIGNATURE v_ _ ID NUMBER g LAST NAME OF PERSON SEAIE’D T0 YOUR RIGHT: __ LAST NAME OF PERSON SEATED T0 YOUR LEFT.’ no NOT OPEN THE EXAM UNTIL You ARE TOLD To Do so. - Please sign your name on the top of pages 1 through 4. - Please check that you have 5 pages (including this one; page 5 is blank for your scratch work). - Answer only in the space provided.
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1.1 CHEMISTRY 2213a ORGANIC CHEMISTRY FOR THE LIFE SCIENCES - organic chemistry is the study of life at the molecular level; to many it is the key to understanding life “The language of chemistry- an international language‚ a language without dialects‚ a language for all of time‚ and a language that explains where we came from‚ what we are‚ and where the physical world will allow us to go” (Nobelist Arthur Kornberg‚ a biochemist‚ 2000) - but its study has been challenging for students for
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SODA PREFERENCES OF FIRST YEAR COLLEGE STUDENTS AT TECHNOLOGICAL INSTITUTE OF THE PHILIPPINES‚ QUEZON CITY In partial fulfillment of the requirements in English 123 Zoren Puno Delfino March 2012 ACKNOWLEDGMENT Before I get into the thick of the things I would like to add a few heartfelt words for the people who gave unending support right from the stage the idea of the research was conceived. I express my deep sense of gratitude & sincere thanks to those who have helped me in
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No. Wavelength cm -1 Interpretation 1 3500-3400 cm -1 O-H hydroxyl group 2 2900-2850 cm -1 C-H alkanes group 3 1150-1100 cm -1 C-O alcohol‚ ether group FTIR of HPMC Table 9.11: FTIR interpretation analysis of HPMC S. No. Wavelength cm -1 Interpretation 1 3600-3500 cm -1 O-H phenols group 2 2950-2850 cm -1 C-H Alkenes group 3 1400-1300 cm
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coal‚ petroleum or natural gas on the location of deposits of the selected fossil fuel in Australia 11 3.3.3 Process and present information from secondary sources and use available evidence to identify safety issues associated with the storage of alkanes. 14 4.2.8 Identify the sources of pollution which accompany the combustion of organic compounds and explain how these can be avoided. 15 Water: 1.2.3 Compare the state‚ percentage and distribution of water in the biosphere‚ lithosphere‚ hydrosphere
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into three classes: alkanes (e.g. methane‚ ethane and propane) have only single bonds‚ and are said to be saturated; alkenes (e.g. ethene and propene) and alkynes (e.g. ethyne) have carbon-carbon double or triple bonds‚ and are said to be unsaturated. Aromatic hydrocarbons are cyclic compounds whose structure is related to that of benzene‚ with six-electrons in a six-membered ring. For this experiment‚ hexane will be used as an example of saturated hydrocarbons (alkanes)‚ cyclohexene will be
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Bioremediation Methods for Oil Spills Contents I. Introduction II. History of Bioremediation 1. ‘Courtship’ Period (Pre-1989) 2. ‘Honeymoon’ Period (1989-1991) 3. ‘Establishment’ Period (since 1992) III. The Biological and Chemical Processes of Bioremediation 1. Biodegradation a. Biological Process b. Degrading Species c. Chemical Process d. Need for Bioremediation 2. Bioremediation a. Seeding with Microbial Cultures b. Environmental Modification
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Analysis of Hydrocarbons Leoncito‚ Alyssa Lynn‚ Libatique‚ Keith Martin P.‚ Ligot‚ Nestlhyn B.*‚ Lim‚ Jamie Therese T. Department of Psychology‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Four organic samples: hexane‚ cyclohexene‚ napthalene and toulene were given to serve as reference standards to characterize and distinguish four unknown given samples. Nitration‚ bromine and basic oxidation testswere conducted to classify the different samples from being an aliphatic‚ or aromatic
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Effects to the water quality Oils consist of a complex mixture of hydrogen and carbon which is used for fuel‚ lubrication‚ plastics manufacturing‚ and many other purposes. These petroleum products get into water mainly by means of accidental spills from ships‚ tanker trucks‚ pipelines‚ and leaky underground storage tanks Petroleum products affect surface water‚ impairing water quality with hydrocarbons‚ salts‚ nutrients‚ a host of organic compounds‚ and various heavy metals. Immediately after
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ΔHθf of CH4 C(s) + 2H2(g) CH4(g) ΔHθc of C ΔHθc CH4 + 2ΔHθcH2 CO2 (g) + 2H2O(l) 7. Which is exothermic bond making or bond breaking? Bond making exo 8. Give an example of an i. Alkane Butane C4H10 ii. Alkene Ethene C2H4 iii. Cycloalkane Cyclohexane C6H12 iv. Alcohol Ethanol C2H5OH v. Ether Methoxy methane CH3OCH3 9. What does an aromatic compound contain
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