Virginia Polytechnic Institute and State University Freshman Application Office of Undergraduate Admissions 925 Prices Fork Road Blacksburg‚ Virginia 24061 Virginia Tech Freshman Application Programs of Study University Studies US University Studies (undecided) 1 College of Agriculture & Life Sciences LFSC Life Sciences (undecided) 1 AGRB Agribusiness AEM Applied Economic Management Agricultural Management and Marketing; Environment‚ Development‚ and Trade Economics;
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Unit 2 PPA 1 Complexometric Determination of Nickel using EDTA Introduction: The Aim of the experiment is to determine the percentage of nickel salt using a complexometric technique. Ethylenediaminetetraacetic acid (EDTA) is a hexadentate ligand which forms stable complexes with most metal ions‚ thus is widely used to determine metals in complexometric titrations. EDTA can be represented as H4Y and in alkaline conditions‚ it exists as Y+ ions: The Y4- ions form 1:1 complexes with metal ions
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Organic Chemistry I Spring 2013 Practice test 1. Name the following compounds: a. 5-tert-butyl-7-isopropyl-6-sec-butyl-undecane b. cis-2-(5‚6-dimethylheptyl)-6-(3-methylpentyl)piperidine c. trans -2-nonyl-3-octyl-tetrahydrofuran d. trans-1‚6-dimethylbicyclo[4.3.0]nonane e. cis-6‚8-ditert-butylspiro[3.5]nonane f. 1‚6-dimethylcyclohexene g. (Z)-3-bromo-4-fluoro-5-methyl-oct-4-ene h. (E)-8-(1-chloroethyl)nonadec-8-ene 2. Draw the structures of the following compounds: a b e c
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CLC108/CLB108 Tutorial #1 1. 2. Define Cell Theory. Discuss the similarities & differences between prokaryotes & eukaryotes‚ with diagrammatic illustrations. Discuss the similarities & differences between plant & animal cells‚ with diagrammatic illustrations. Describe the Davson-Danielli model of plasma membrane with diagrammatic illustration. State the function(s) of the following cell organelles: (a) (b) (c) (d) (e) (f) 6. Golgi complex Mitochondria Smooth ER Rough ER Ribosomes Lysosome 3.
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Lab #3 Atomic Structure & Classification of Matter Objectives Write the correct symbols or names of some elements. Describe some physical properties of the elements you observe. Categorize an element as a metal or nonmetal from its physical properties. Given the complete symbol of an atom‚ determine its mass number‚ and the number of protons‚ neutrons‚ and electrons. To identify and classify different types of matter. Background Primary substances‚ called elements‚
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Chemistry Student Handout Question & Answers 1. Most drugs are weak acids or weak bases. Is cocaine a weak acid or weak base? Cocaine is a weak base. 2. A weak acid or base can exist in 2 forms—charged (ionized) or uncharged (unionized). What is the major factor that determines whether the weak acid or base is charged or un- charged? The amount of H+ in comparison to OH- 3. In what chemical form (charged or uncharged) is cocaine snorted? Smoked? Why are they different? Cocaine (unionized) is
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Data Tech‚ Inc. 2 Determine whether Jeff should give greater priority to a smaller facility with possibility of expansion or more into a larger facility immediately. According to Sliwinski and Gabryelczyk‚ facility management is a customer-oriented complete service‚ covering the comprehensive decision-making principles for optimum planning‚ usage and adaption of buildings
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Surgical Techs were originally performed by nurses. The succession of World War I and II‚ Korean War‚ and the Vietnam War made a huge need for health care and physicians. Medical technicians started serving the role of a “scrub tech” in the operating room. During the time of the Korean War‚ physicians started using medical technicians as assistant instead of nurses over the years http://www.alliedhealthworld.com/surgical-technologist.html Hospital- based programs were developed for surgical techs in the
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Microbiology: study of small living things study of bacteria: bacteriology study of viruses: virology study of parasites: parasitology study of fungi: mycology NOT ALL BACTERIA ARE PATHOGENS (disease causing) antibiotic: used to treat bacterial infections and diseases (penicillin‚ mold‚ 1929) bioremediation: using bacteria to clean up toxins pathogenesis: ability of an organism to be pathogenic virulence factors: toxins‚ receptors‚ cellular composition innate immune response v.s
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What is the effect of a non-volatile impurity on the boiling point of a substance? of a volatile impurity? A non volatile impurity which is added to the volatile liquid‚ it’s boiling point will increase. It is due to some of effective surface area which is available for evoperation is occupied by non volatile substance. If another volatile impurity is added then 1) if it does not chemically react with given liquid then boiling point will decreade due to increase in vapour pressure. 2) if it chemically
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