Miraj Patel Justice or Murder Imagine being isolated because of a blizzard‚ and being a store owner you need to get more supplies‚ but can’t. This is what was going on with Justin‚ general store owner‚ until he found the town’s only hope the town bully‚ Billy. Billy would do the job‚ but he would also “tax” them by taking their items. Justin was getting real tired of Billy’s “tax”. When Billy was found dead‚ it was murder by Justin. First of all‚ Justin killed Billy by knowing there was something
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tribromide‚ bromination with hydrogen peroxide and hydrobromic acid‚ and ethanol replaces the iodine. The figure above demonstrates the equilibrium of pyridinium tribromide with pyridinium hydrobromide‚ which allows gradual release of bromine into the reaction. Some of the benefits of using pyridinium tribromide are (1) weight can be determined more easily as opposed to bromine in liquid form‚ (2) a safer solvent‚ such as ethanol may be used as opposed to a solvent containing chlorine. The reaction
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LAB OF ENTHALPY CHANGE IN COMBUSTION Objective: Determine the Enthalpy change of combustion ΔHc of three different alcohols. Methanol‚ Ethanol and Isopropilic acid. Procedure: 1. Fill the spirit micro burner with Ethanol and weight it 2. Pour 100 cm3 of water into the aluminum cup 3. Arrange the cup a short distance over the micro burner 4. Measure the temperature of water 5. When the temperature of the water has risen by 10°C‚ record the temperature. 6. Reweight
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Hydrogen H2 285 Ethanol C2H5OH 1367 Ethyne C2H2 1300 Propane C3H8 2220 Sucrose C12H22O11 5650 Octane C8H18 5460 6. A student wished to determine the heat of combustion of ethanol. He used a spirit burner containing ethanol to heat 250g of water in a beaker. The temperature rose from 15oC to 31oC. During combustion‚ the burner lost 0.90g in mass‚ due to the ethanol combusting. Calculate the heat of combustion in ethanol. 7. The heat of combustion of ethanol is 1367 kJmol-1
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Cracking of pentane: ▪ pentane [pic] ethylene + propane ▪ C5H12 (g) [pic] C2H4 (g) + C3H8 (g) – Hydration of ethylene (the reverse can also happen known as de-hydration‚ where concentrated acid is used): ▪ ethylene + water [pic] ethanol ▪ C2H4 (g) + H2O (l) [pic] C2H5OH (l) – Hydrogenation of ethylene: ▪ ethylene + hydrogen [pic] ethane ▪ C2H4 (g) + H2 (g) [pic]C2H6 (g) – Hydrohalogenation (more specifically‚ Hydrofluorination) of ethylene: ▪ ethylene
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Title: Colligative Properties & Osmotic Pressure Background: Important terms to study from this lab assignment are colligative properties‚ membrane permeability and osmotic pressure. First‚ colligative properties are “those of a solution that depend solely on the number of solute particles present‚ not the identity of those solute particles. These properties include: vapor pressure lowering‚ boiling point elevation‚ freezing point depression‚ and osmotic pressure” (p. 17 lab manual). In this experiment
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Final Energy Independence and Security Act 2007 Michael Swirtz ECN 201 December 12‚ 2012 Introduction Signed on December 19‚ 2007 by President Bush‚ the Energy Independence and Security Act of 2007 (EISA) aims to move the United States toward greater energy independence and security while increasing the production of clean renewable fuels. With prolonged demonstration and a commitment from both government as well as citizens’‚ to protect consumers from the inflation of oil prices when there
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in a certain way to extract DNA‚ until we are finally successful in the end. In the wheat germ extraction‚ the ethanol will be able to separate the DNA‚ and it will float between the less dense ethanol and the denser homogenizing mixture. (2) Materials: 1 gram of raw wheat germ. 1 ml of 10 % sodium dodecyl sulfate (SDS) / 1.5 % NaCl solution. 5 ml‚ 95 % ethanol. (Keep ethanol cold‚ preferably on ice‚ prior to use). 15 ml. 50°C-60°C tap water. 1 Test tube with cap. 1 DNA spooler. 2 Pipets
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the corresponding alkane with the same number of carbon atoms. Compare ethane and ethanol: Ethanol is a longer molecule‚ and the oxygen brings with it an extra 8 electrons. Both of these will increase the size of the van der Waals dispersion forces and so the boiling point. If you were doing a really fair comparison to show the effect of the hydrogen bonding on boiling point it would be better to compare ethanol with propane rather than ethane. The length would then be much the same‚ and the number
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Ethanol consumption was reported to increase body lead burden and essential metals depletion [18‚ 20]. Both lead and alcohol are known neurotoxicants. Alcohol which is also known to cross the blood–brain barrier might also facilitate the entry of lead in the brain [21]. Several researches has shown that consumption of ethanol during gestation and lactation impaired learning and memory [10‚ 23‚ 61]. The hippocampus
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