The purpose of column chromatography is to separate one compound from another by the differing polarities in the compound. This technique is important in organic chemistry because certain experiments may require the separation of compounds in solution to be used for chemical synthesis and/or analysis of a particular desired product by isolating it. Fluorene is to be separated from 9-fluorenone using the technique of column chromatography. The success of separation and purity is determined with analyzation
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the regional and religious problems that had been created in Nigeria‚ and to make it easier for all of the different ethnic groups to co exist. The next change to this set up came in 1951 with the input of a ministerial government‚ and finally ended with independence in 1954. The independent government was not‚ however‚ completely self-governing. Because the different groups all had different interests‚ the British implemented different strategies to make all of the regions happy. These compromises
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Cultural Clash in the Chesapeake Relations between the Powhatan and English were ok‚ until the colonists raided Indian food supplies‚ burned houses‚ and set fire to cornfields. The First Anglo-Powhatan war ended with the marriage of Pocahontas and John Rolfe‚ but that peace didn’t last because the Second Anglo-Powhatan war began in 1644 and the result was the banishment of the Chesapeake from their homeland. The Powhatans fell due to disease‚ lack of unity‚ and the fact that the colonists didn’t
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CASE STUDY ON MONOPOLY Submitted By: Submitted On: 16th April 2012 INTRODUCTION Today‚ many firms are enjoying a monopoly of their products/services in the market. Monopoly may be defined as the complete control over a commodity enjoyed by a particular company in the market. There will be only a solo manufacturer or provider of the commodity and customers have to depend on them whenever there is a demand since there are no substitutes available. As a result‚ such
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Describing Sensor Performance: When describing sensors and instrumentation systems we make use of a range of terms to quantify their characteristics and performance. It is important to have a clear understanding of this terminology‚ so we will look briefly at some of the more important terms. • Range: This defines the maximum and minimum values of the quantity that the sensor or instrument is designed to measure. • Resolution or discrimination: This is the smallest discernible change
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INTRODUCTION Smart Grid is sophisticated‚ digitally enhanced power systems where the use of modern communications and control technologies allows much greater robustness‚ efficiency and flexibility than today’s power systems. The American Electric Power Research Institute (EPRI)‚ an advocator of building the smart grid‚ gave this grid a definition with self-healing‚ security‚ integration‚ collaborative‚ forecast‚ optimization and interaction. While European commission define it as : A grid which could
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This lab is an opportunity to observe‚ study‚ and learn about ecosystems and how the environment sustains life but in a much simpler and smaller scale which is called Eco Columns. The environmental conditions in the Eco Column could sustain life for several weeks‚ therefore over the course of the several weeks we will observe and study the interconnections between each ecosystems. A self sustaining requires components such as energy flow and chemical cycle. This experiment will evaluate our knowledge
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blood who has led my dear Hamlet to go against me. In the end‚ it is I who would have to choose who I will keep dear in my heart‚ but to choose would be to become selfish. Instead of siding‚ I have discovered that‚ the only way to equally satisfy both sides‚ is by listens to ones heart‚ rather than listening what others desire. My father‚ Polonius‚ may have spoken the words I could not bare to hear. How does one’s father know if a man only wants you for your naked skin‚ but not for your love? Or it
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DESCRIBING PEOPLE’S APPEARANCE: She’s not very tall‚ with dark hair and blue eyes IL DESCRIBING PEOPLE’S APPEARANCE Body She’s of medium height. She’s a woman of average height. She’s quite tall. She’s a woman of average height. She’s a woman of below average height. She’s not very tall. (→ She’s short.) He’s slim. He’s of medium build. He’s well-built. He’s rather plump (=not slim). He’s broad-shouldered. He’s quite muscular. He’s a bit overweight. (→
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Side By Side: The Digital Revolution With the fast progression of technology in the 21st century‚ cinema has transformed digitally‚ leaving film in our history. Keanu Reeves and Christopher Kenneally combine their experiences‚ knowledge‚ and passion of cinema to create the documentary‚ Side by Side. Countless respectable film industry moguls are interviewed throughout the documentary showcasing their mastery of the art and expressing their opinions on it’s revolution. Side by Side explores the
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