Organic Chemistry Lab EXPERIMENT #2 and #3 Extraction and Evaporation Recrystallization and Melting Point Measurement PURPOSE: 1. To the components of a simulated pharmaceutical preparation‚ Panacetin‚ and identifying the unknown component of the mixture through extraction and separation methods. 2. To learn how to purify by recrystallization‚ how to dry them and how to obtain a melting point. PRECAUTION: ACETANILIDE AND PHENACETIN ARE EYE AND SKIN IRRITANTS. Minimize contact with
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Melting Permafrost’s Negative Contribution to Global Warming [pic] Global Warming is a problem that impacts the entire planet. The average temperature of our planet has risen about 0.5°C in the last 100 years. According to field biologist Wolter in 2008‚ the melting of permafrost in the colder regions of the world is mostly responsible for global warming; causing the world’s climate to be at risk. (Wolter‚ 2008) “Permafrost is any rock or soil that remains frozen constantly
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Michael Clagett Mr. Ben Demuth‚ Ms. Katie Noll World History‚ English I 6 January 2016 The Dust Bowl Did you know that the Dust Bowl was one of the most devastating events in the history of the United States? The Dust bowl helped improve agriculture in the U.S. The Dust Bowl was also known as the Dirty Thirties. It greatly damaged the ecology and agriculture of the U.S. and Canadian Prairies. The “Homestead Act” of 1862‚ offered settlers 160 acre plots. Around 1904‚ The federal government expanded
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Imagine floating on a block of ice thats melting‚ in the middle of the arctic ocean with nothing around you. How about spending time with your family‚ on a submarine exploration of downtown Miami. Do these two scenarios sound appealing to you? I hope not. These two scenarios could eventually turn into reality. PowerPlanet power plants are filling our air with pollution. This air pollution is causing a domino effect that melts ice caps‚ which kills arctic species by destroying their habitats and it
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weighings. This procedure was repeated two more times and the average of the three measurements was recorded as the density. The boiling point was measured using a microscale device consisting of a capillary tube‚ a microcapillary tube and a melting point apparatus. The microcapillary tube was sealed on one end by rotating the end gently in a Bunsen burner flame until it was sealed. Care was taken to avoid overheating the tube which would cause it to bend. The larger capillary tube was heated
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inelasticity of demand is applicable when referring to goods which have few if any substitutes‚ super bowl commercials are an example of an inelastic good. The network airing the super bowl has a fixed amount of commercials they are able to sell which results in a quota of commercials that needs to be filled. The longer the period before the night of the super bowl‚ the higher the price per commercial is. As super bowl night gets closer the price gets lower in order for the network to fill all available commercial
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Lamar Hunt is the only person to have been inducted into the Hall of Fame for three major sports: Football‚ Tennis‚ and Soccer (speaking of which‚ check out some Bob Marley soccer posters!). * The four colleges who have perfect records in Football bowl games are: UNLV‚ University of Connecticut‚ East Michigan‚ and Idaho. * The Pittsburgh Penguins have retired a total of 2 numbers. These numbers (21 and 66) belonged to Michel Briere and Mario Lemieux respectively. * The only baseball player
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The Cambodian Genocide took place because a man named Pol Pot made an army called the Khmer Rouge and set out to create the perfect society. However‚ his method of creating this society involved millions of innocent people dying. He killed people to try and eliminate the old society. Pol Pot and the Khmer Rouge used the fear of others to shape their identity by making them feel safe‚ committing mass killings‚ and deprivation. In 1954 Cambodia became independent‚ after being ruled by the French.
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smoking marijuana. What most Americans don’t realize is the benefits that can come from legalizing marijuana because their minds are clouded by the stereotypes associated with the average ‘pot smoker’. Dismiss the corny jokes and stereotypes for a second and consider the truths that are unveiled. In Timothy Egan’s “Give Pot a Chance‚” Egan looks beyond the stigma of smoking weed and points out the benefits that will come from legalization. Although the government is wrongfully hindering us from legalizing
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------------------------------------------------- MELTING POINT AND BOILING POINT OF ORGANIC COMPOUNDS ------------------------------------------------- ABSTRACT The melting point (MP) and the boiling point (BP) are probably the most widely used physical constant in the field of science. Determining the boiling point and the melting point of a compound helps you to characterize an unknown solid in a quick‚ easy and cheap way. The temperature at which a compound turns from a solid state to a liquid state is known to be the melting point.
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