William son Eth er Synth esis Introduction In this reaction‚ an alcohol is deprotonated to form a good nucleophile‚ which then attacks the electrophile methyl iodide to form an ether. Tetrabutylammonium bromide‚ a phase transfer catalyst‚ is used to carry ions back and forth between the organic phase and the aqueous phase. OH O NaOH + NaI + H2O CH3I Before coming to lab‚ please review the following techniques: "Reluxing a reaction‚" "Extraction and washing‚" "Drying an Organic Solvent‚" "Evaporating
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This week’s material was light‚ all of it relating to the rise of opera. To help understand the influences that allowed for opera to emerge‚ two late madrigals were presented. Monteverdi’s Cruda Amarilli highlighted how the harmonic language of seconda practica broke existing harmonic rules to express the text. Most of the expression presents itself through dissonances on words such as "amaramente" and "l’aspido‚" all relating to the feelings of discord or distress. The second piece was Caccini’s
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Ryan Nolder Ms. Chavez AP Language and Composition 29 April 2013 The Use of Biological Warfare in the United States With the rise of tension between countries such as North Korea and the United States‚ not only is the nuclear threat higher than ever but also a biological warfare threat. With lethal bacteria such as Anthrax or Tularemia being used as a primary threat in today’s century‚ what shall the United States do to prepare for the possibility of a biological attack? In order for the
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Over the past two centuries‚ the United States Postal Office has helped the United States grow by providing communication across the country. The USPS quickly able to provide communication all across the world. In the fast paced society‚ it is difficult to for the USPS to keep up with all the new gadgets. Especially because the internet allows people to communicate with others in a much more efficient and reliable way. Customers also choose other companies like UPS and Fedex. By reconstructing the
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In this lab‚ I calculated the heat of combustion of paraffin (candle wax) by burning a candle and holding a calorimeter (a soda can) filled with 98.7 mL of water above the flame. The heat released by the candle was absorbed by the water in the can. It was important to place the metal chimney around the candle so that minimal amounts of heat would escape; having too much heat lost to the atmosphere would cause extra error in the calculations. The assumption made was that all heat released from the
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As any high school junior or senior will tell you‚ the most common question students face is ‘what are your plans for after high school?’ This‚ rather weighted‚ question leaves students more concerned for their future. In the past‚ it has been stressed that only by going to college will a student become successful in the ‘real world.’ However‚ today students are faced with a multitude of choices regarding their future. Nevertheless‚ a college education has the ability to prepare students to be successful
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Stress is not sensible for the average American student. Our physical stress was biologically engineered to counter threats of the animal world and save our lives. Fight or flight reactions aren’t rational for stress over a class‚ but regardless‚ our bodies have the same psychological reaction to a test as it would to the threat of a grizzly bear (Scott). The limbic system‚ or the brain’s emotional center‚ contains the amygdala. This structure acts as an alarm system to screen any threats and communicates
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Amy Lee‚ the lead singer of former rock band Evanescence‚ is releasing a new album next month. The new album titled ‘Dream Too Much’ will be a 12 song children’s album inspired by her two-year-old son‚ Jack. Amy’s album started as a gift to her father‚ to spend time with him in the studio. He encouraged her to make some kid friendly songs for her son to enjoy and soon became a family affair‚ including her father‚ sisters‚ uncle‚ husband‚ and son. Most of the songs featured will be covers of famous
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The warm sun rays beaming down on the emerald stalks of corn‚ the bright light radiating on rolling fields of amber grain. Children screaming in delight throughout the country sides and cities. During those sensational‚ amiable months of summer‚ tucked inside practically every newspaper are calendars touting seemingly endless opportunities to attend weekly farmers markets. A new movement‚ deemed locavorism‚ is digging its spurs in the ground and taking root in communities worldwide. Instead of relying
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It is common for a written piece of literature to have a profound effect on one’s way of thinking. By shifting the thought of one person‚ literature can create a ripple effect and spread to others living in the same society. This shift aids in transforming modern society and propelling society to make appropriate modifications. A few pieces of literature that shifts one’s perspectives include The Ones to Walk Away From the Omelas (1991) by Ursula K. Le Guin‚ Salvation (1940) by Langston Hughes‚ and
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