Melting Point Determination and Thermometer Calibration Lab Background: The melting point of a substance‚ a solid in this case‚ signifies the temperature at which the first crystal starts to melt until the temperature at which the last crystal disappears is reached. That being said‚ melting points are expressed in ranges‚ am organic compound will have a sharp range depending on the purity of the compound. Impurity of an organic substance will register an abnormal melting point based on its
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Melting Range Report Name: Date: Lab Section: Selected Known Compounds Name Structural Formula Literature Melting Point Acetanilide C8H9NO 114.3°C Fluorene C13H10 116.5°C Experimental Data Sample Composition 1. 100% Acetanilide 2. 10% Acetanilide 3. 25% Acetanilide 4. 50% Acetanilide Fluorene 5. 75% Acetanilide 6. 90% Acetanilide 7. 100% Fluorene Melting Range 108-116°C 108-112°C 105-112°C 102-109°C 105-112°C 109-115°C 108-114
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BICH 172 – Introductory Biochemical Laboratory Worksheet 10 - DNA Melting Curve Course Code: BICH172 Course Name: Introductory Biochemical Laboratory Student Name: CHUNG YUK MAN EMILY Student ID: 10198465 Group Number: 10 Date of Experiment: 16th November 2010 Q1. State the experimental aim and describe the term “hyperchromic effect”. (2 mark) The experimental aims are to study the basic structural characteristic of DNA molecules through UV spectrum
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Crystallization and Melting Points Organic Chemistry 221 9/19/2012 Intro/Purpose: The purpose of this lab was to use crystallization to separate a compound from a solvent and be able to choose the best solvent to do so. Then identify an unknown and verify purity using melting points. Solubility contributes to crystallization; because a solute has lower solubility at lower temperatures‚ which makes the solvent separate from the solution as a solid. This process is important to understand because
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Little Snow-White Little Snow-White by Jacob and Wilhelm Grimm is a beautiful fairy tale comprised of a simple master plot‚ intricate dichotomies and an inspiring protagonist; Snow-White. Following a standard “rags to riches” master plot‚ the narrative is one that sets the bar high for young girls growing up. Little Snow-White encourages girls to aspire to be a “good woman” and convinces one that in order to be content‚ one needs extravagant items‚ marriage and wealth‚ all the things the protagonist
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Landslide in a Village The rainstorm was over‚ I dashed out from the house to free myself. Spending hours in the house really made me feel bored rigid (extremely bored). I needed fresh air and so I went for a ride in the neighbourhood of Bukit Katil. I enjoyed cycling along the roads that ran parallel with rows of tall trees. The atmosphere around me was refreshingly cool. In the midst of admiring view‚ I caught the sight of a house that was partly buried in the mud. I halted (stop)
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This essay reviews the short story "The Snows of Kilimanjaro"‚ by Ernest Hemingway. The main theme in "The Snows of Kilimanjaro‚" is that all people should behave and live proactive‚ and they should take risks to experience the taste of their lives. The story serves as an example to those who live passively‚ sitting around and benefiting from others‚ and then become miserable‚ unsatisfied with their lives and overwhelmed with the feeling of emptiness. To recognize and better observe the theme
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Melting Pot Many cultures from different countries have come over to America and made it a “Melting Pot.” Each year in America‚ many immigrants come from different countries and shares their unique cultures with America. As Marin used the term Melting pot in his essay “Towards something American‚” it describes as an unused furnace that does not burn until imported values and lives stop being fed into the system; moreover‚ Marin mentioned that Americans have no culture. On the other hand‚ Taylor
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In order to understand our selves‚ we must first understand snow. I find my self constantly drawn back to the subject of snow. While much has been written on its influence on contemporary living‚ several of todays most brilliant minds seem incapable of recognising its increasing relevance to understanding future generations. Crossing many cultural barriers it still draws remarks such as ’I wouldn’t touch it with a barge pole’ and ’i’d rather eat wasps’ from the easily lead‚ whom I can say no more
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Michael Drake Maris Cooke Essay 2 11-11-2012 The Snow Leopard The snow leopard is a moderately large cat native to the mountain ranges of Central Asia‚ in the Animalia kingdom. The Snow Leopard is of the Chordata phylum and the Mammalia class. The Snow leopard is also a carnivore and belongs to the Felidae family (Tonhouse‚ 2011). It is part of the Uncia Family and is considered to be part of the Panthera Uncia species (Panthera uncia‚ 2012). The species is disputed between Panthera
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