The 13C NMR spectrum was useful to help finding the structure of the unknown. It showed six different signals in the spectrum. Signal 1 had an observed peak value of 19.242 ppm‚ and its peak calculated value was 19.1 ppm. This signal was first to most upfield and shielded in the spectrum because of the high electron density of carbon. This signal was agreed to a literature value for a CH3 group between 5-30 ppm. Signal 2 was branched to signal 1‚ and had the same value‚ but it was agreed for the
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Special Report Methyl ethyl ketone – A techno-commercial profile M ethyl ethyl ketone (MEK or 2-butanone) is an organic compound with the formula CH3C(O)CH2CH3. Its CAS number is 78-93-3. The colorless liquid ketone has a sharp‚ sweet odour of butterscotch and acetone. It is produced industrially on a large scale‚ and also occurs in trace amounts in nature. It is soluble in water and is commonly used as an industrial solvent. With natural and synthetic resins‚ MEK produces solutions with low viscosity
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experiencing conflicts with his spouse and his 17 year old son who has been recently diagnosed with a personality disorder and as a result‚ he is going through psychiatric assessments. For John’s case‚ I have decided to apply Donald E. Super and John L. Holland’s theory. The Theory Of Donald E. Super has provided us with great knowledge about how career decisions are made. It takes both the length and breadth into account of career developments throughout the life time. It also takes into account of
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Integrating Values-The Legality‚ Morality‚ and Social Responsibility of Wal-Mart’s Response to Sex Discrimination and Pay Lawsuits Natalie Rondon Christian Varillas Shirley Simmonds Francisco Amado Kyle Lozito Nova Southeastern University We certify that we are the author of this paper and that any assistance received in its preparation is fully acknowledged and disclosed in the paper. We have also cited any sources from which were used data‚ ideas of words‚ whether quoted or paraphrased
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acidification of salicylic acid and acetic anhydride. The objective was to convert a specific amount of salicylic acid into the same amount of aspirin that was high in purity. Furthermore‚ the other objectives were to enable students to conduct the synthesis of aspirin‚ reinforce skills or recrystallisation and the technique of melting point determination. The amount of each compound should be the same because there is a 1:1 ratio between them. The purity of the synthesized aspirin was measured by determining
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1. Introduction The use of first language or second language (L1/L2) is still used in teaching English classroom as a Foreign Language. Actually‚ the term of using L1/L2 in EFL classes is ongoing debates in some occasion by looking some consideration between pro and contra of using L1/L2 in EFL classes. In any cases‚ the term of first language is the first language that the students got from their mother and they may continue to use it in the rest of their life and second language is a language
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The Great Sorting Out Thomas L. Friedman analyses technological advances that are making a more economic level playing field with disadvantaged countries rising in knowledge and wealth before. Countries such as China and India has mastered in telephone and computer technology to make these nations become competitive economically. As we explore America’s place in the fast-evolving world economic platform‚ Friedman presents not only the problems we face‚ but also the preventative and the possible
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Whenever a writer creates a story‚ his or her life will affect it. L. Frank Baum’s life affected the book and movie‚ The Wonderful Wizard of Oz. In the book and in the film‚ his life affects the setting‚ characters‚ and conflicts in the story. Kansas‚ where Dorothy lives‚ is the same as South Dakota‚ where L. Frank Baum’s adulthood took place. His childhood was the inspiration for Oz. Baum’s experience with a tornado made the cyclone in the movie. Little do readers know that his life sometimes is
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Experiment 4 Synthesis of Salicylic Acid Introduction Throughout history‚ botanical extracts have been used as medicines. Approximately 30% of all medicines have a plant origin. This number increases to 60% if you consider medicines that at one time were derived from plants‚ but have been synthesized in the laboratory. Salicylic acid is a white crystalline compound that can be isolated from the bark of birch trees. Since it is a valuable substance that can be isolated from nature‚ it is called
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C O M P E T I T I V E A N A LY S I S GAMECONSOLES Color palette: Weak‚ outdated Strengths Not much strength here. The close-up of the game controller photo adds power to the overall box. The sunrise on the planet horizon shows an “out of this world” look and feel‚ providing the sense of unlimited games experiences and a vast universe of gaming options. The logo and symbol covering almost a third of the box makes a direct and easy identification of the product to the consumer. Weaknesses
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