References: (1) Alkyl halides. Retrieved from http://hyperphysics.phy-astr.gsu.edu/hbase/organic/alkhal.html (2) Arnold‚ H.R. & Lessig‚ E.T. Synthesis of alkyl halides. United States Patent Office: 1937. (3) Bauld‚ N.L. Alkyl halides. 2001 Retrieved from http://research.cm.utexas.edu/nbauld/teach/halides.html#mechanism (4) McGraw-Hill Companies. Preparations of alkyl halides. Retrieved from http://www
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percent yields and the percent errors of each catalyst. In the end‚ we saw that for the sulphuric acid catalyzed aspirin‚ we saw an average of 69.7% percent yield and an average 30.3% percent error. As for the phosphoric acid catalyzed aspirin‚ we saw an average of 55.0% percent yield and an average 42.2% percent error. The Ka value for sulphuric acid is 1.0 x 10³ while the Ka value for phosphoric acid is 7.1 x 10⁻³. Knowing that the Ka value denotes the acidity of
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The Grignard Synthesis of Triphenylmethanol Abstract: Grignard synthesis of triphenylmethanol was achieved by use of the Grignard reagent phenyl magesium brominde. The organometallic grignard reagent was synthesized by use of a reflux apparatus recrystallization techniques. Once synthesized it was used in a Grignard reaction that involved nucleophilic addition to a carbonyl in order to make triphenylmethanol. The final product was solidified and recrystallized and spectral data was
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Lactic Acid Bacteria Amanda Perry Many persons are oblivious to the fact that when they consume certain delicious food products like yogurt‚ buttermilk or cheese‚ they are actually eating live bacterial biomass which has acidified the milk content and contains a mixture of bacterial slime layers. Perhaps it is a blessing that most people are unaware because when most hear the word ‘bacteria‚’ their first thought is of a microscopic unicellular organism that causes various types of diseases especially
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Synthesis Paper Focus Question: What role do the Harry Potter books play in children’s education? In my freshman year in high school‚ Mr. Mehta‚ the Head of the English department‚ made some changes to our school’s English curriculum. One of these changes included introducing the fifth book of the Harry Potter series‚ Harry Potter and the Order of Phoenix‚ to our reading list. Mr. Mehta’s simple action attracted more attention than ever before! While students lauded his decision‚ most parents
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Lecture 5 Lizan A. Majeed Reading Paragraph Purpose Each paragraph in a text has a clear purpose. For example: The first paragraph introduces the topic‚ states the purpose of the text‚ or describes a problem or situation. The body paragraphs develop arguments‚ try to persuade‚ suggest solutions‚ or describe developments. The final paragraph concludes‚ evaluates‚ or discusses consequences. Identifying the purpose of each paragraph helps you understand the text and decide where
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Wang Experiment #4 Recrystallization of Pure Phthalic Acid‚ Benzoic Acid and Napthalene Introduction Recrystallization is a important method in purifying organic compounds which are solid. It is an effective method that is important to be familiar with that is essential in the industrial chemical world. This experiment will allow students to be familiarized with the technique of recrystallization by working with phtalic acid‚ benzoic acid and naphthalene from appropriate organic solvents. Experimental
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SYNTHESIS OF STRONTIUM HEXAFERRITE SUBSTITUTED WITH TITANIUM AND ZINC NANOPARTICLES BY SOL-GEL METHOD AND ITS CHARACTERIZATION BY PAVITRA THIRUCHELVAM SCHOOL OF ARTS AND SCIENCE TUNKU ABDUL RAHMAN COLLEGE KUALA LUMPUR 2012/2013 SYNTHESIS OF STRONTIUM HEXAFERRITE SUBSTITUTED WITH TITANIUM AND ZINC NANOPARTICLES BY SOL-GEL METHOD AND ITS CHARACTERIZATION BY PAVITRA THIRUCHELVAM A project report submitted to the School of Arts and Science in partial fulfilment of the requirement for the Bachelor
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Strong Acid and Weak Base Titration Lab Cherno Okafor Mr. Huang SCH4U7 November 21st‚ 2012 Data Collection and Processing Concentration of the standard HCl solution: 0.1 M Data Collection: | Trial 1 | Trial 2 | Trial 3 | Final HCl Buret Reading ± 0.05 mL | 38.3 | 45 | 54.5 | Initial HCl Buret Reading ± 0.05 mL | 29.9 | 38.3 | 45 | Volume of NaHCO3 used ± 0.1 mL | 9.2 | 9.5 | 9.8 | Qualitative Data: * I used the methyl orange
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During protein digestion‚ a water molecule is added which breaks down the carbonyl-carbon-nitrogen sin the peptide bonds of proteins causing the liberation of amino acids. This process is referred to as proteolysis. Water molecules break down the carbonyl-carbon-nitrogen single bond (peptide bond) that holds single amino acid molecules together (Caroline Ritchie‚ 2013. This process is called hydrolysis and is catalysed by protease. The three main protease enzymes produced during digestion are pepsin
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