Sulphur dioxide is produced by burning eithersulphur or ores which contain sulphur. Purification of sulphur dioxide 1. The sulphur dioxide is then purified‚ by removing impurities like arsenic compounds whichwould otherwise poison the catalyst.2. It is then passed through an electrostatic dust precipitator‚ which‚ as its name implies‚charges dust particles which are then removed by being attracted to oppositely chargedplates. Stage 2 Formation of Sulphur trioxide sulphur
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WJEC CBAC AS/A LEVEL GCE in Chemistry REVISION AID UNIT 1 AS UNIT CH1 – Controlling and Using Chemical Changes (in order to make things‚ produce energy and solve environmental problems) Preamble This unit begins with some important fundamental ideas about atoms and the use of the mole concept in calculations. Three key principles governing chemical change are then studied‚ viz. the position of equilibrium between reactants and products‚ the energy changes associated with a
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compound with NaCN in hot DMF to form the product of 2-(4-hydroxyphenyl)acetonitrile. Then 2-(4-hydroxyphenyl)acetonitrile will be refluxed with H2O and Ethanol. After the hydrolysis with water and ethanol‚ this compound will be catalysed using a Pt catalyst which forms the product of acetamide then condensed with hot piperidine gives 2-[4-(2-oxiranylmethoxy)phenyl]acetamide. Then the oxirane ring of 2-[4-(2-oxiranylmethoxy)phenyl]acetamide is opened using isopropylamine in methanol. The condensation
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Furthermore‚ it aims to enhance and help the public to be aware of the capabilities of bows and arrows. This research proposes the widespread use of bows and arrows as a tool in promoting archery as an educational sport. These projects serve as a catalyst in promoting archery with the use bows and arrows in a controlled and easily manipulated environment setting. Objectives of the Study * To explore the results that will be obtained from different versions of bows and arrows * To establish
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Carbon Nanotubes Abstract Carbon nanotubes (CNTs) are a recently discovered allotrope of carbon. They take the form of cylindrical carbon molecules and have novel properties that make them potentially useful in a wide variety of applications in nanotechnology‚ electronics‚ optics‚ and other fields of materials science. They exhibit extraordinary strength and unique electrical properties‚ and are efficient conductors of heat. Inorganic nanotubes have also been synthesized. A nanotube is a member
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washed with cold water (2 x 1.0mL) then let dry to yield aspirin (0.1732‚ 63%) as solid form. Mp. 133-136 oC (lit[2] 134-136 oC). Discussion: The reaction of synthesis of aspirin with salicylic acid an acetic anhydride with phosphoric acid as catalyst formed acetylsalicylic acid in 63% yield as crystalline solid. The melting point of the crystals was determined to be 133-136 oC‚ which is within the reported literature range and supports the identity of the desired reaction product. The narrow
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Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time
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26 ACETONE BY DERYDROGERATION OF ISOPROPANOL ......... 27 Chemistry ......................... Mechanism ........................ Kinetics ......................... Review of Processes .................... Feed Specifications ................... Catalyst ......................... Reactor ......................... Temperature and Pressure ................. Space Velocity ...................... Conversion‚ Selectivity‚ and Yield ............ By-products ....................... Product Purification
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he implemented the CEO’s vision of transforming Aviall into a provider of supply chain management services through the integration of a range of Web-enabled e-business software systems.. software‚ a Lawson Software financial system‚ a Catalyst Manufacturing Services inventory control and warehouse
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reducing-agent for fevers. In order to synthesize this product‚ the reactants salicylic acid and acetic anhydride (in excess) are used in the presence of a catalyst to create the product acetylsalicylic acid and acetic anhydride. Acetylsalicylic acid is the active pharmaceutical ingredient in aspirin and the catalyst is not consumed in the reaction. A catalyst is only used to speed up the reaction. While aspirin is an over the counter drug‚ it is crucial that it is prepared correctly‚ if the wrong amount
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