In the novel Things Fall Apart‚ written by Chinua Achebe‚ there are three main instances which lead to the downfall of the Igbo culture—the destruction of the village of Abame‚ the conflict between Okonkwo and Nwoye in the motherland‚ and the conflict between the church and the clan in Umuofia. In the second year of Okonkwo’s exile in the motherland‚ Obierika‚ his friend‚ came to bring him the revenue his yam crops had earned him along with a story about the destruction of Abame. “During the last
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of adipic acid has been a growing topic of discussion due to the harmful impact it has on the environment. To aid in elucidating an environmentally friendly approach‚ the synthesis of adipic acid via a greener oxidation reaction and a recyclable catalyst will be examined. This article will discuss how manipulating equivalents of 30% hydrogen peroxide (H2O2) affect the product yield. Results show product yield was affected when changing H2O2 equivalents. Equivalent ratio 1:4 (cyclohexene to H2O2)
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Decolorization and Chemical Oxygen Demand Reduction (COD) of Simulated Textile Wastewater using Fenton’s Reagent Submitted to: Eric Siy COE 5100 – Statistical Research and Design Chemical Engineering Department College of Engineering De La Salle University – Taft‚ Manila by MARIA KATRINA A. PULUTAN MS Chemical Engineering 1st Trimester AY 2010-2011 1. INTRODUCTION Nature is threatened by the environmental contamination caused by the wastewater produced and discharged every day
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chemical reaction of the formation of aspirin. Because the reaction is slow in pure acetic anhydride‚ the catalyst‚ commonly strong acids like phosphoric acid was used for the reaction. According to Le Chatelier’s principle‚ the presence of excess acetic anhydride forces the equilibrium towards the desired product‚ which in this case is the aspirin. In addition to this‚ the catalysts were also used to ensure that side reactions‚ which may cause the percentage yield to increase‚ will be avoided
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this play. Her manipulation and insistence led Macbeth to the murder of King Duncan. She uses emotional blackmail and knows he is morally sensitive to instigate him. She manipulates him into the act and drives him to the murder acting as a physical catalyst to encourage him. Most importantly is how she plays a key role in removing her femininity so she can push Macbeth to carry out the murder. King Duncan’s death eventually leads to the rest of the events in the play; because Lady Macbeth was responsible
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Molecular Biology Problem Solver: A Laboratory Guide. Edited by Alan S. Gerstein Copyright © 2001 by Wiley-Liss‚ Inc. ISBNs: 0-471-37972-7 (Paper); 0-471-22390-5 (Electronic) 12 Electrophoresis Martha L. Booz Chemical Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Is the Safest Approach to Working with Acrylamide? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Are the Symptoms of Acrylamide Poisoning? . . . . . . What
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oxidation of methanol. A mixture of molybdenum and iron or silver is used as a catalyst in such a reaction. But a more commonly used process is FORMAX. In this process‚ methanol and oxygen react at temperatures more than 250ºC in presence of vanadium to produce formaldehyde. The following chemical equation represents the reaction that takes place. 2CH3OH + O2---> 2CH2O + 2H20 . But if you are using a silver based catalyst‚ then you have to operate at a temperature more than 650ºC. Although formaldehyde
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Candidate name…………………………………………………………………….. MINISTRY OF EDUCATION MASALA SECONDARY SCHOOL BOARD MOCK EXAMINATION 2014 SCIENCE 5124/3 PAPER 3 (CHEMISTRY) 1hour 15minutes Additional materials: Monday 30th July 2014. Answer paper INSTRUCTIONS TO CANDIDATES Write your name‚ centre number and candidate number at the top of this page all separate Attempt all questions in SECTION A and only TWO questions in SECTION B SECTION A (45 marks)
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Enzymes are proteins that function as biological catalysts (Perry‚ Morton 2007). They maintain the body’s stable internal balance‚ and without them life would be impossible (Sullivan‚ 2013). Enzymes are capable of speeding up reactions that otherwise would happen at a slower rate. Even though we have hundreds of different enzymes in our cells‚ each enzyme is specific for one particular reaction that occurs in the cell (Fuentes‚ 2011). A catalyst is responsible for lowering the amount of energy
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4-methylcyclohexene must first be converted into H2O by means of an acid-base reaction using a strong acid catalyst such as phosphoric acid and sulfuric acid. The H2O will then become the favored leaving group and leave on its own resulting in the formation of a carbocation in excess water. The water will remove the acidic hydrogen on the carbocation producing the desired alkene as well as regenerating the acid catalyst (fig. 2). A time effective way to collect the 4-methylcyclohexene is to heat the reaction to
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