Fractional Distillation & Gas Chromatography Exp. 1 Pre-Lab: 1) When two substances whose molecules are very similar from a liquid solution‚ the vapor pressure of the mixture related to vapor pressure of the pure substance. Also it could be defined as a two liquid are ideal solution when they don’t react with each other and they make no association. 2) Are a mixture of at least two different liquid‚ and known also as a mixture of two or more liquid in such away that its component
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experience of the soldiers was beyond anything that had ever been faced before. A soldier who was attacked by poison gas says that “It seemed as if [his] lungs were gradually shutting up and [his] heart pounded away in [his] ears like the beat of a drum. On looking at the chap next to [him‚ he] felt sick‚ for green stuff was oozing from the side of his mouth.” (Pressey‚ “Poisonous Gas”). After getting attacked‚ this soldier isn’t only poisoned physically‚ but is poisoned mentally as he looks at the
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Walter Brodner Prof. Geerling ENC1101 5 February 2013 Energy Drinks: Liquid Meth? Over the last decade‚ drinks containing high amounts of caffeine‚ sugar‚ and other ingredients that increase energy have been rapidly growing in popularity. Clearly these beverages are known as energy drinks. Energy drinks have gotten so popular that it is extremely rare to find a convenience store that doesn’t sell a variety of them. Students use energy drinks to cram the night before a test‚ athletes use them
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and Combustible Liquids? Put simply‚ flammable and combustible liquids are liquids that can burn. The real difference lies within their flash point range‚ or lowest temperature at which vapours of the material will ignite when supplied with an ignition source. Flammable and combustible liquids are utilised in most workplaces‚ from manufacturing to retail and service entities. To ensure the safety of property‚ people‚ and the environment‚ both flammable and combustible liquids need to be handled
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After the Bhopal gas disaster in 1984‚ the Indian legislation governing safety and environment underwent significant changes.Specifically‚the factories Act was amended to assign the responsibility of the “occupier”‚who is legally responsible for the safety of the workplace and workers‚to the highest level of management in an organization. For a company this meant that one of the directors on the board had to be designated as “occupier”.The Environmental legislation also underwent changes ‚with the
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The Purity and Purification of Solids Recrystallization ABSTRACT In this experiment‚ impure adipic acid is purified though recrystallization. The impure adipic acid is dissolved in a solvent. After cooling it is ran through a vacuum filter to separate any moisture. The dry crystals are then weight for percent yield and the melting point range is taken to test the purity. There were two different trials ran in this experiment. The difference between the two was the addition of charcoal in
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Introduction A gas is the state of matter that is characterized by having neither a fixed shape nor a fixed volume. Gases exert pressure‚ are compressible‚ have low densities and diffuse rapidly when mixed with other gases. On a microscopic level‚ the molecules (or atoms) in a gas are separated by large distances and are in constant‚ random motion. When dealing with gases‚ the Ideal Gas Law equation is the most famous equation used to relate all the factors in dealing and solving the problem
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• Natural gas is an odorless‚ colorless‚ flammable gas. It is non-toxic and lighter than air. • The gas chiefly consists of methane (CH4)‚ but also contains other hydrocarbons such as ethane‚ butane‚ propane and naphtha. Oil and gas deposits in the North Sea were formed millions of years ago through the decomposition and transformation of organic matter (plant and animal remains). In its primary form‚ natural gas can be used for residential heating and cooking‚ for industrial purposes
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Arizona Gas Pipeline On July 30‚ 2003 an Arizona gas pipeline owned and operated by the Houston‚ Texas based company‚ Kinder Morgan Energy Partners‚ burst in Tucson and was shut down. A small portion of the 11-mile pipeline‚ which is about five feet underground burst and at least 10‚000 gallons of gasoline spilled; the pipeline rupture spewed gasoline 50 feet into the air. The Arizona gas pipeline cuts through Tucson’s South and West sides en route from El Paso‚ Texas to Phoenix‚ Arizona and
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Arterial blood gases are only done in the very sick children‚ who have been intubated/ventilated and have arterial lines in situ (usually in the theatre prior to transfer to the PICU in Newcastle. Here is a stepwise approach to blood gas analysis. STEP 1: [pic] STEP 2: Look at pCO2 [pic] STEP 3: Look at Bicarbonate & Base excess (BE) [pic] Base excess (BE): Base excess is the amount mmol/l of base that is needed to correct pH back to normal when pCO2 is corrected
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