composition is 0.50 mole fraction A. (a) Draw a rough graph of temperature versus volume of liquid collected for a distillation starting with 100 mL of liquid having composition 0.60 mole fraction A. 9. Examine Figure 5.51. Assume the melting point of pure A is 102oC‚ of the eutectic is 80oC‚ and of pure B is 110oC. Assume cooling ends when the temperature drops to 50oC. Draw the cooling curve for composition a (assume a2 occurs at 104oC). 10. Identify
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The earth has not always looked the way it looks today. In other words‚ the United States one billion years ago was in a totally different location than it is today!! How does this happen? And why does this happen? Let’s take a look. In order for us to get some understanding of how the earth has changed over time‚ we first need to understand some of the things that took place‚ and are still taking place‚ in the earth. What about the internal structure of the Earth? Our best clues about the interior
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and put on gloves and goggles. Be sure pets and kids are not running underfoot as begin this project. 2. Start by measuring the oils and placing them into the crock pot. Remember: For this recipe measuring all ingredients by weight‚ not by volume. 3. Turn the crock pot on high and melt all the oils. Better to use a smaller crock pot to cook the ingredients down and then move to a larger one once start adding the liquids. 4. Place 375g of the distilled water into a glass or stainless bowl. Measure
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is mainly made of a solvent‚ while the solute is the smaller part of the solution. A solution’s freezing point depression is a type of colligative property. There are four types of colligative properties: vapor pressure‚ freezing point depression‚ melting-point elevation‚ and osmotic pressure. When a non-volatile (does not vaporize) solute mixes with the solvent‚ it lowers the vapor pressure of the solvent. This also raises the boiling point and lowers the freezing point. To find the molar mass of
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in grey cast iron gives the material good resistance to wear and also provides good corrosion resistance and lubrication characteristics which gives it exceptional machinability. The Carbon also provides good strength and toughness and has a high melting point which allows it to handle more heat under intense driving conditions. The composition of the grey cast iron is 3.5% carbon‚ 2.5% silicon and .65% manganese. Cast Iron engine blocks are still very common to this day in larger vehicles such as
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References: Anon.‚ 2009. Lead or Tin Phase diagrams. [Online] Available at: http://www.sanjose.edu/labnotes/tech25 [Accessed 09 April 2013]. Bunnelle‚ W. H.‚ Meyer‚ L. A. & Glaser‚ R. E.‚ n.d. Recrystallization and Melting Point Determination. [Online] Available at: www.chem.missouri.edu/.../Recrystallization%20notes.doc [Accessed 09 April 2013]. Garland‚ C. W.‚ Nibler‚ J. W. & Shoemaker‚ D. P.‚ 2003. Experiments in Physical Chemistry. 7th Edition ed. New York:
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playing in this simulation was Wai Cheng who is a Chinese diplomat. At the time of the simulation‚ China and Cambodia were close allies as both regimes were communist. Cheng is well acquainted with most of the Khmer Rouge‚ however‚ does not defend Pol Pot and his actions during the time of his reign. My overall goal is to ensure that the Khmer Rouge is not made as the scapegoat. Therefore the pressing issue I will seek to negotiate is accountability; who should be prosecuted and how? Cheng also believes
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Erik M ENG 102 – 32816 8 Oct. 2008 Climate Change’s Effects on Glacial Melting On the sheltered slopes of the highest peaks in Glacier National Park‚ in Montana‚ the beautiful and majestic landmasses known as glaciers are quickly melting away. These giant landmasses are found all over the world‚ on both North and South Poles‚ on all seven continents‚ and even on the high peaks in the tropical regions near the equator. Over the past few decades‚ the global climate has been subject to vast changes
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did horrible or terrible things with torture‚ overworking their prisoners and citizens to the brink of death. The evil people that were unnamed are Pol Pot and Ilse Koch are examples of people who are inhumane and immoral. Pol Pot and Ilse Koch actions on other people are seen as sick and dirty‚ because of the way they treated people. Pol Pot‚ right after winning a civil war‚ would make‚ “ Former civil servants‚ doctors‚ teachers and other professionals were stripped of their possessions and forced
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Pol Pot- Dictator of Cambodia Pol Pot was a Prime Minister of Cambodia from 1976-1979. Pol pot or Saloth Sar‚ was born in 1925 in a small village north of the cambodian capital called Prek sbauv. His family owned 50 acres of rice. In 1934 Pol Pot moved to Phnom Penh‚ where he spent a year at a Buddhist monastery before attending a French Catholic primary school. His Cambodian education continued until 1949‚ when he went to Paris on a scholarship. While there‚ he studied radio technology and became
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