GAS CHROMATOGRAPHY EXPERIMENT The purpose of this experiment is for the student: 1) to learn the general theoretical aspects of gas chromatography as a separation method‚ 2) to learn how to operate gas chromatographs specific to COD‚ 3) to become familiar with using the gas chromatograph (GC) to qualitatively identify components of mixtures‚ 4) to be introduced to and to interpret the quantitative data available via gas chromatography‚ 5) to gain insight into how the GC technique is used
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about shell Royal dutch shell plc commonly known as Shell‚ one of the world’s largest oil & gas multinationalcompanies. It is an Anglo-Dutch company with headquarters in the Netherlands with its registered office in London‚ United Kingdom. It is the fifth-largest company in the world (and the second-largest energy company). It is vertically integrated and is active in every area of the oil and gas industry‚ including exploration and production‚ refining‚ distribution and marketing‚ petrochemicals
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To prevent gasoline prices from having devastating effects on the economy it has been proposed that all gasoline prices in the United States be fixed at the average price for the last two years. For simplicity it will be assumed that this price is $2.50 per gallon. When equilibrium prices are under $2.50 per gallon the excess payments will be kept in a government fund. When retail prices exceed $2.50 per gallon money from this fund will be distributed to pay the difference. Do you think that this
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How Chromatography Helps The Human Race Chromatography is the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates. “Chromatography is done by making of a mixture move past the solids‚ or across the surface of a solid‚ like paper. The mixture is poured onto a solid surface. As the different components of the liquid run down the solid‚ some of them move more slowly than other. A component
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Electricity from Natural Gas Natural gas is a fossil fuel formed when layers of buried plants and animals are exposed to intense heat and pressure over thousands of years. The energy that the plants and animals originally obtained from the sun is stored in the form of carbon in natural gas. Natural gas is combusted to generate electricity‚ enabling this stored energy to be transformed into usable power. Natural gas is a nonrenewable resource because it cannot be replenished on a human time frame
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Mustard Gas During World War I LOST was the original name for mustard gas‚ it was named after Lommel and Steinkopf. They were the first people who proposed this gas to the military to use as a weapon in 1916. Although mustard gas could possibly been developed as early as 1822 by a French chemist‚ Cesar-Mansuete Desperetez. Thirty-two years later Alfred Riche repeated this reaction of the sulfur dichloride and ethylene‚ but both Riche and Desperetez did not note any harsh properties. In 1860‚
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1) A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression‚ the gas pressure was __________ atm. A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0 2) A sample of a gas (5.0 mol) at 1.0 atm is expanded at constant temperature from 10 L to 15 L. The final pressure is __________ atm. A) 1.5 B) 7.5 C) 0.67 D) 3.3 E) 15 3) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The
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is * Sulfur mustard is a type of chemical warfare agent. These kinds of agents are called vesicants or blistering agents‚ because they cause blistering of the skin and mucous membranes on contact. * Sulfur mustard is also known as “mustard gas or mustard agent‚” or by the military designations H‚ HD‚ and HT. * Sulfur mustard sometimes smells like garlic‚ onions‚ or mustard and sometimes has no odor. It can be a vapor (the gaseous form of a liquid)‚ an oily-textured liquid‚ or a solid
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Boyle’s Law - Solutions 1) If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L‚ what will the new pressure inside the piston be? P1V1 = P2V2 (1.5 atm)(5.6 L) = (x)(4.8 L) x = 1.8 atm 2) I have added 15 L of air to a balloon at sea level (1.0 atm). If I take the balloon with me to Denver‚ where the air pressure is 0.85 atm‚ what will the new volume of the balloon be? P1V1 = P2V2 (1.0 atm)(15 L) = (0.85 atm)(x) x = 18
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Introduction to Gas Turbines A turbine is any kind of spinning device that uses the action of a fluid to produce work. Typical fluids are: air‚ wind‚ water‚ steam and helium. Windmills and hydroelectric dams have used turbine action for decades to turn the core of an electrical generator to produce power for both industrial and residential consumption. Simpler turbines are much older‚ with the first known appearance dating to the time of ancient Greece. In the history of energy conversion‚ however
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