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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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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Syallubus for CHEM 1301 General Chemistry I Fall 2011 SCIE 2.106‚ M‚W: 2:35-3:50 Instructor Name: Dr. J. G. Parsons Email: parsonsjg@utpa.edu Office: Science room number: 3.348 Phone: Office : 381-7462 Office Hours: M/W: 1:30-2:30 or by appointment CRN: 12626 REQUIRED MATERIALS: Text Book: Chemistry by Julia Burdge (ISBN 978-0-07-302554-4) Scientific calculator (ARIS software package Required) RECOMMENDED MATERIALS: Burdge study guide Blackboard web course and a UTPA email address. CREDIT: Lecture
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the Tech Shop? Why was it created? Do you think that either Bloomington or Peoria would be suitable cities in which to have one (why or why not)? The walls of history are papered with the stories of dreamers‚ who turned their ideas into innovations. Tech shop was founded by Jim Newton and Ridge McGhee. Jim Newton originally wanted to establish a place with tools to work on his pet projects‚ like building a digital clock‚ which he has still not gotten around to building. The first Tech Shop
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------------------------------------------------- Application of Statistical Concepts in the Determination of Weight Variation in Samples Maria Catherine C. Cabrera Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City June 19‚ 2013 ------------------------------------------------- June 26‚ 201 ------------------------------------------------- Abstract In this experiment‚ different statistical concepts; such as Q-test‚ Mean‚ Standard Deviation‚ Range‚ and Confidence interval
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1-25-14 EH 101 Helpful or Harmful? What would you choose to be the worst mistake in history? There are many different thing you could pick from. Some might say slavery and some might say going into space. According to Jared Diamond in his literary article‚ “The Worst Mistake in History of the Human Race”‚ the worst mistake was the adoption of agriculture. The title he gives his work helps you really weigh out the pros and cons of agriculture. It lets you know that this mistake that occurred
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The American Heritage Dictionary defines law as “a rule of conduct or procedure established by custom‚ agreement‚ or authority.” Since even the most primitive forms of life have been known to live by some “rule of conduct‚” by definition‚ law has existed before the dawn of the human race. However‚ no other species have adopted laws to fit their immediate needs more than humans. As groups of humans began living in larger and larger groups‚ competition for resources such
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actions and assume your consequences. Sascha should go to trial. He should get the punishment he deserves and needs to be accountable with society‚ paying his crime. The colonel states that Sascha should go to court and resolve his crime on his own‚ he is against paying the debt for the promissory note because it is his signature the one involved in the crime‚ so not only would the family honor be lost‚ but he would also be incriminated in the matter. “Suppose we were to forgive him and pay the money.
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