to make sure the apparatus did not fall apart while in use. For the next step of the experiment gas chromatography was used to analyze the samples. In gas chromatography‚ it puts the solution into two separate phases‚ the mobile (non-polar) and the stationary (polar) phase. The mobile phase is where the solution is carried by an inert gas‚ in this case helium‚ through a column that is heated. For gas chromatography‚ the 3 tubes of solution that we received were individually tested to determine its
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The feed of 90% Ethanol is kept in a storage tank with an air vent. Tank blanketing is used in the storage tank with Nitrogen gas. This is to prevent contamination of the feed. Nitrogen tank blanketing will reduce the oxygen level in the tank‚ and thus reduce the risk of fires and/or explosions posed by Ethanol‚ which is a volatile and combustible substance. The Nitrogen gas will exit from the air vent‚ preventing it from flowing into the process. The feed is pumped from a pressure of 1 bar to
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Lab 5Cellular Respiration Introduction: Cellular respiration is an ATP-producing catabolic process in which the ultimate electron acceptor is an inorganic molecule‚ such as oxygen. It is the release of energy from organic compounds by metabolic chemical oxidation in the mitochondria within each cell. Carbohydrates‚ proteins‚ and fats can all be metabolized as fuel‚ but cellular respiration is most often described as the oxidation of glucose‚ as follows: C6H12O6 + 6O2 → 6CO2 + 6H2O + 686 kilocalories
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investigated to see how the change in concentration of hydrogen peroxide and the change in temperature affect the rate of reaction. The data will be collected by measuring the gas pressure. The product of Hydrogen Peroxide is oxygen in a gas state thus it is mandatory to use the gas pressure sensor. By calculating the difference of the gas pressure divided by the amount of time from the raw data collection it is able to find the rate of reaction of the decomposition of hydrogen peroxide. * Control Variable-
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Unit 6 Problem Set 1: Applying Thermal Expansion Learning Objectives and Outcomes Calculate the thermal expansions of solids and liquids. Assignment Requirements Complete the following problem. Show all of you work. The formula for the linear expansion of a solid is given by: An iron rod (α = 11.8 x 10-6 C-1) has a length of 1000 meters (or 1 km) at 0 degrees Celsius. If the rod must expand 10 cm to bridge a gap‚ to what temperature must the rod be heated? Increase in L = a*(T-To)L
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information ‚ air is atmosphere. It is a clear gas in which living things live and breathe. It has indefinite shape and volume‚it has no colour and smell but it has mass and weight. Air create atmosphere pressure. In fact‚ there are a lot type of gases in the air such as nitrogen‚oxygen‚argon gas‚carbon dioxide‚ hydrogen ‚neon ‚helium‚ krypton and xenon.The most percentage of gas in the air is nitrogen which is 78% of gases
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Cola Explosion When the Mentos come into contact with the Diet Coke‚ a reaction causes the rapid formation of foam. it is concluded that the potassium benzoate‚ aspartame‚ and CO2 gas contained in the Diet Coke‚ in combination with the gelatin and gum arabic ingredients of the Mentos‚ all contribute to the formation of the foam. The structure of the Mentos is the most significant cause of the eruption due to nucleation.MythBusters reported that when fruit-flavored Mentos with a smooth waxy coating
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that is poisonous to cells. Catalase speeds up the decomposition of hydrogen peroxide into harmless water and oxygen gas. The purpose of this lab was to determine whether an inhibitor affects the rate of activity for the enzyme catalase. Since catalase speeds up the production of oxygen gas‚ the rate of enzyme activity can be measured as the height of the column of oxygen gas bubbles produced in a test tube. If copper sulfate inhibits the action of catalase‚ then it will slow down the reaction
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Hayette O. Empuerto BA 109 – Financial Management MASCO OIL AND GAS COMPANY I. Facts of the Case Masco Oil and Gas Company is very large company with common stock listed on the New York Stock Exchange and bonds traded over the counter. As of the current balance sheet‚ it has three bond issues outstanding: $150 million of 10% series . . . . . . . . . . . . . . . . . . . . | 2021 | $50 million of 7% series . . . . . . . . . . . . . . . . . . . . . . | 2015 | $75 million of 5% series
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ANALYSIS OF MOUTHWASH Background Information: Commercial mouthwashes are mixtures of water‚ alcohol‚ dyes‚ flavorings‚ and other compounds. In this experiment‚ you will use gas chromatography to determine the alcohol content of the mouthwash. Since the volumes of alcohol and water are not additive when mixed‚ a calibration curve must be used. It will provide the correction factor needed for alcohol-water mixtures. The calibration curve will be prepared by placing a known amount of alcohol
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