colorless‚ the end point titrations using KMnO4 as the titrant can be taken as the first pink color that appears in the solution (and stays without disappearing). The titration which involves the oxidation of Fe2+ ion to Fe3+ by permanganate ion‚ is carried out in sulfuric acid to prevent air-oxidation of Fe2+ (we can them determine the accurate number of oxygen reacted this way). MnO4- in KMnO4 Oxidizing agent; it is reduced Fe in Fe(NH4)2(SO4)2● 6H2O Reducing agent; it is oxidized Objective:
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and to understand how a reduction-oxidation relationship works to produce spontaneity. Lastly‚ these results were used to determine the Faraday’s constant and Avogadro’s number by electrolysis‚ which is chemical decomposition produced by passing an electrical current through a solution with ions. The primary objective of part one of this experiment was to discover how the properties of an electrochemical cell works. An electrochemical cell is based on an oxidation-reduction reaction and is composed
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took place by using the oxidation numbers in the equation. Variables: 1. I cleaned the reaction surface to limit contamination 2. I held the chemicals at approximately a 90 degree angle for consistency Introduction: Redox reactions occur when both oxidation and reduction take place. All atoms can be assigned an oxidation number‚ which is a positive or negative number that help in determining the reducing and/or oxidizing agents in an equation. An increase in the oxidation number of an atom from
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Can Anyone Determine What Education Really Is? Shanell L. Robinson Effective Essay Writing/ COM 150 March 1st‚ 2010 Eloisa Hilton Can Anyone Determine What Education Really Is? Education can be traced back for so many years. It’s been developed into so many things we can’t keep track. But the question right now is “What is education‚ really?” The Wikipedia states‚ “In its technical sense education is the process by which society deliberately transmits its accumulated knowledge
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Frege was able to resolve his linguistic puzzles through his famous sense and reference distinction‚ yet Russell wanted to develop a theory that could present a solution that does not need to rely on what he considered making arbitrary assumptions (i.e. positing sense when it is not needed). Essentially‚ Russell’s theory of descriptions is predicated upon a purely referential theory of meaning and takes at its heart the understanding that denoting phrases (ordinary names and descriptions) are not
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Crossword Puzzles: A Debatable Future Crossword puzzles have enjoyed over a century of success‚ but their place in society over the next century is in question. The crossword puzzle is an early 20th century game and it hasn’t changed much since then‚ which is a good thing‚ because people don’t want it to. However‚ the way it is promoted needs to be changed. Back when everybody read the newspaper‚ the crossword puzzle was easily accessible. Since the rise of the Internet‚ the readership of news publications
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Solving My People Puzzle: Phase 1 Anthony D. Whorley November 9‚ 2013 PACO 500: Introduction to Pastoral Counseling Instructor: Dr. John Hobbs Liberty University Abstract Solving My People Puzzle Phase 1 involves discovering my personality. This paper will bring to light how I operate through the descriptions that are provided‚ throughout this paper. Part of this assignment‚ I had to submit a survey to at least two of the people who knew me best
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Ann Reardon made her way across the crowded trade-show floor‚ deep in thought and oblivious to the noisy activity all around her. As CEO of The Eldora Company (EDC) for the previous 13 years‚ she had led her organization through a period of extraordinary success. While larger bicycle makers had moved their manufacturing operations overseas to take advantage of lower labor costs‚ Eldora had stuck with a domestic manufacturing strategy‚ keeping its plant on the same campus as its corporate offices
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The One Who Got Away: Solving the Puzzle of Jack the Ripper In August 1888‚ the dwellers of London’s East End arose from sleep to find their lives a little darker than before. Mary Ann Nichols‚ a prostitute‚ had been viciously murdered‚ nearly decapitated by two cuts to the throat‚ her abdomen displaying multiple cuts (Begg 46). Over the next three years‚ ten other women would be murdered in the Whitechapel area. While there is no definitive proof linking these murders to one killer‚ analysis
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April Goodson CHEM 242L-002 February 20‚ 2013 Oxidation of Cyclohexanone to Adipic Acid Abstract The cyclic ketone cyclohexanone was oxidized to adipic acid using the oxidizing agent nitric acid. The experiment yielded 0.2667 grams of adipic acid‚ giving a percent yield of 113.97%. Although the product was allowed to dry for one week‚ residual moisture was still present in the sample and a melting point could not be obtained. This error in the experiment either resulted from adding too much
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