THE PURITY AND PURIFICATION OF SOLIDS MELTING POINTS ABSTRACT Melting points of different mixtures of naphthalene and biphenyl were examined in this lab. Samples of these various mixtures were collected and tested by different individuals in the lab in order to find the eutectic point of biphenyl. Unknown substances were then tested using the mixture melting point method in order to determine their identities. INTRODUCTION The melting point of a solid is the temperature where the substance
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Milan Wrobel BA-200 Prof. Bill Kohler 24 January 2014 Two Ways How to Establish Creadibility In the article “The Necessary Art of Persuasion” by Jay A. Conger‚ published by Harvard Business Press‚ the author points out that effective persuasion includes four essential steps: establishing credibility‚ framing one’s goals on a common ground‚ reinforcing one’s position‚ and connecting emotionally with an audience. The most important step in effective persuasion is the ability to establish credibility
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different points within the past one hundred years. I first read The Last Tycoon‚ by F. Scott Fitzgerald. Published in the United States in 1941‚ The Last Tycoon is a drama novel that focuses on the life of Monroe Stahr‚ a wealthy‚ caucasian‚ 1930’s Hollywood executive. Though not based in New York like the other three novels‚ The Last Tycoon depicts the hub of wealth and power that Hollywood was at the time‚ and details Stahr struggle to navigate such a place as a rich man himself. Next‚ I read
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citizens. As culture evolved‚ our interpretation of the document has shifted with it‚ but the document itself and its fundamental concepts have not. The Constitution has protected the basic rights of all citizens‚ and has granted us certain privileges that allow us to uphold the democracy and the government that serves the people. Some of these include the right to vote and the ability of citizens to maintain their status. But who’s to say some citizens wouldn’t take advantage of it? Why is an informed
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EXAMINATIONS- HAS IT KILLED EDUCATION? As we know that the examination system has come to be the main theme of modern education. Everyone from his early child-hood should take endless examinations and succeed in passing them‚ before he could graduate from a college or university. As much importance has been attached to it in school education‚ it has been subjected to mounting criticism as to its validity. People in favor of it praise this system to great extent; and those opposing to it maintain
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Even though animals can be beneficial‚ animal testing does not always predict reliable results in humans since most experiments involving animals are flawed and waste animal lives‚ while alternative testing methods are more accurate. Many people believe that animal testing is unethical and unnecessary since we have discovered medical breakthroughs without the help of our furry friends. In this case‚ Alois Alzheimer first described the main features of Alzheimer’s disease in 1906 by studying brain
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Motivating an ADN to Obtain a BSN Introduction What motivates an ADN to pursue higher education? As Janine Spencer RN‚ PhD‚ states in her article published in The Journal Continuing Education of Nursing‚ "Expanding opportunities‚ raising potentials‚ and providing an “edge” have been prevailing themes in several studies that investigated the motivation of RNs to receive their BSN." (2008) The need for nurses is growing and nursing schools across the country are struggling to expand their enrollment
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EXERCISE 9 - Mechanical properties of solid and fluid mechanics 1. A stainless-steel wire of length 3.1 cm and a diameter of 0.22 mm. If it is stretched by 0.10 mm‚ find the tension of the wire. The Young’s modulus for stainless steel is 18 × 1010 Pa. 22 N 2. Determine the elongation of the rod i Figure 1 if it is under a tension of 5.8 × 103 N. Young’s Modulus: Copper‚ 11.0 x 1010 Nm-2‚ Aluminium 7.0 x 1010 Nm-2 1.9 cm 3. Air is trapped above liquid ethyl alcohol in
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“Facebook is a necessary evil” Discuss? Facebook in simple terms can be defined as a social networking website that enables around a billion people worldwide to connect with each other via the internet. Following its initiation Facebook was labelled as an essential tool for communication whereas these days it has mostly been used as a tool for practising of evil deeds in the society. Recently Facebook has been used as a tool for unnecessary evil in the society with main examples social uprising
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The government is always expanding in many ways‚ but what justifies them to do so? The Necessary and Proper Clause can both support such decisions‚ or reject them. These Clauses are explained in the Constitution. It says that‚ “The Congress shall have Power …To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers‚ and all other Powers vested by this Constitution in the Government of the United States‚ or in any Department or Officer thereof.” The importance
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