Lab #5: Grignard Reaction – Synthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee‚ Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used
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The character of Gaston is full of vanity. According to the Oxford Dictionary‚ vanity refers to "excessive pride in or admiration of one’s own appearance or achievements (Oxford Dictionaries.)" Gaston constantly brags throughout the movie about his excellence and achievements‚ such as in his introductory scene. In this scene‚ Gaston’s close friend and admirer retrieves a kill‚ exclaiming "Wow! You didn’t miss a shot‚ Gaston! You’re the greatest hunter in the whole world!" Gaston replies boastfully
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ChR2+ group. Larvae from this plate contracted immediately when the light was turned on and only produced waves during the interval the light was not on. Because the light flashed a set amount of times per second‚ the larva was not able to complete a full wave. This became more evident as the light continued to flash in a shorter time interval as the number of waves decreased as the MRR increased‚ until finally‚ when the MRR is set at 2 Hz‚ the
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Full Sentence Outline Because of our countries demand for oil‚ we have allowed drilling to take place in US waters for many years now. This has created many environmental problems over the years. The latest oil spill has opened the eyes of the people and now they are willing to fight to keep the environment safe for their families and future generations. There are many people that would like to see oil drilling come to an end‚ but that will take a lot of work for us to make this happen. The
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Academic Achievement 1. Children who attend full-day kindergarten learn more in reading and math over the kindergarten year than those in half-day programs. (Lee‚ Burkam‚ Honigman‚ Meisels‚ 2002) This is after adjusting for learning differences associated with race/ethnicity‚ poverty status‚ fall achievement level‚ sex‚ class size‚ relative amount of time for subject area instruction‚ and the presence of an instructional aide. (ECLS study) 2. Children in full-day kindergarten have higher achievement
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Life full of flowers Hans Christian Andersen told us:" just living is not enough. One must have sunshine‚ freedom‚ and a little flower.” When you were young‚ happiness was simple; now that you’ve grown up‚ simplicity is happiness. Do you still remember the childhood you spend with beautiful nature‚ fragrant of grasses and blooming flowers? Back to the Latin word “eudaimonia”: the highest good for human beings. Actually the explanation to this complicated word sometimes can be very simple‚ just
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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FULL DISCLOSURE PRINCIPLE ACC 421 Kimberly Dixon 12/10/12 What is the full disclosure principle in accounting‚ why has disclosures increased substantially in the last 10 years‚ and regulations that are being increased and put into place. These are the three areas of the full disclosure principle that will be discussed in this paper. First‚ what is the full disclosure principle in accounting? The full disclosure principle is the principle that states that a company must include in its financial
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A World Full of Cruelty Different aspects of human nature have always been a part of literary works written by writers of every era. Human beings are portrayed as compassionate‚ loving‚ caring‚ empathetic and concerned about society and the people around them. However‚ literature is also filled with the abundance of negative facets of human nature such as hatred‚ discrimination and cruelty. This very form of cruelty is shown in the “Adventures of Huckleberry Finn‚” by Mark Twain in which Huck
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“MOTIVATION” Filipino people are religious human being. We usually seek for guidance from our Lord in every decision we will made so in relation to that our teacher decided to have a speaker that can motivate us spiritually‚ emotionally and to enlighten us by a word of god. Fr. Joel Eslabra was the 1st invited speaker. He is a priest who is willing to share the word of God and also can give us inspiration. Fr. Joel starts his discussion with an inspirational lecture about the word of god presented
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