120.3 to 123.8 oC. Because it is lower than the known value‚ this means the obtain product is not completely pure. Impurities in the compound can result in a decrease in the compounds melting point‚ which is observed here. The impurities could be 1-propanol due to an insufficient drying. If the experiment was performed again‚ the product would need to be dried completely by properly running the suction filtration for a sufficient amount of time. The percent yield was 75.69%. This is somewhat low‚ and
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Try one Try two Substance Absorbance Substance Absorbance 4ml of water‚ 0 ml of ethanol 0.0000 4ml of water‚ 0 ml of ethanol 0.000 3ml of water‚ 1 ml of ethanol 0.125 3ml of water‚ 1 ml of ethanol 0.058 2 ml of water‚ 2ml of ethanol 0.147 2ml of water‚ 2ml of ethanol 0.087 1ml of water‚ 3ml of ethanol 0.153 1ml of water‚ 3 ml of ethanol 0.099 0 ml of water‚ 4ml of ethanol 0.175 0ml of water‚ 4ml of ethanol 0.139 Mouthwash without alcohol 0.178 Mouthwash without alcohol 0.503 Blue mouthwash
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causing hardships‚ increased food prices‚ and other problems. Ethanol has been blamed for the rise of food prices. Since corn is used for many different things such as food for us‚ ethanol gasoline and food for animals. Even though ethanol lowers our gas mileage corn is being used more for ethanol and making it more expensive for the people who would like to eat corn on a cob. In 2013‚ 40% of corn and other crops went to produce ethanol‚ 45% was used for feeding livestock and other animals‚ and only
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Reaction tests water splitting in photosynthesis‚ and can be observed when a color change occurs. This color change will occur when a molecule is split and electrons are removed from molecular oxygen and hydrogen ions. DCIP combined with sucrose or ethanol spinach mixtures‚ will give either a green color (indicating photosynthesis occurred) or no color at all (indicating no photosynthesis occurred)‚ depending on the factors and environments to which the mixtures will be tested. In experiment one‚ membrane
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Int. J. Chem. Sci.: 7(4)‚ 2009‚ 2617-2623 NITRIC OXIDE RADICAL SCAVENGING ACTIVITY OF AQUEOUS EXTRACT OF TERMINALIA BELERICA BARK AKHLESH SINGHAI*‚ GOVIND NAYAK‚ ASHOK BUDHWANIa and ASHISH SINGHAIb Lakshmi Narain College of Pharmacy‚ BHOPAL (M.P.) INDIA a Daksh Institute of Pharmacy‚ CHHATARPUR (M.P.) INDIA b VNS Institute of Pharmacy‚ BHOPAL (M.P.) INDIA ABSTRACT In the present investigation‚ am attempt has been made to investigate the in vitro antioxidant potential of aqueous extract of
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Rgt/Pdt | Structure | Physical Properties | Hazards | acetone | | Physical State: LiquidAppearance: colorlessBoiling Point: 56.20CMelting Point: -95.30CDensity: 0.79 g/cm3 | Causes eye and skin irritation. May cause central nervous system depression. May cause liver and kidney damage. Causes respiratory tract irritation. Extremely flammable. | aniline | | Physical State: LiquidAppearance: oily - colorlessBoiling Point: 1840CMelting Point: -60CDensity: 1.0216 g/cm3 | Combustible. Hazardous in
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the mass and the given percent mass of ethanol‚ we found the density of pure ethanol for each known concentration of alcohol‚ and averaged the three calculated densities to give us a density of pure ethanol (0.8391 g/mL) that we could use to calculate the concentration of the unknown solution. We used this to calculate the volume of ethanol in the unknown test tube (7.918 mL)‚ and used the calculated density of ethanol to convert volume ethanol to mass ethanol in the unknown test tube (6.644 g). Since
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Distillation of an Ethanol- water Mixture Abstract The purpose of this experiment is to understand the process of distilling a solution. Thesolution of 50/50 ethanol-water was used in the experiment. Using fractional distillationapparatus ethanol-water mixture was separated. The fractional use of copper sponge wasused in distillation process which created the heat exchange area between the vapor of ethanol and liquid water. The fractional distillation process yield 9.5 ml of ethanol incollecting flask
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Introduction 2 Literature review 2 Conclusion 3 Bibliography/References 3 Price Elasticity of Demand Introduction Ethanol production in the U.S. has grown tremendously in the last decade. Production was averaging one billion gallons per year in the early 1990s‚ grew to four billion gallons in 2005‚ and in 2007 exceeded six billion gallons (Renewable Fuels Association (RFA)). If current plans for new construction and expansion come to completion‚ production capacity will exceed
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Mohideen 1 Darik A. Mohideen Professor Jarrod Stringer English 1301 24 June 2012 Effects of Ethanol in the Society Ethanol‚ also called ethyl alcohol is a volatile‚ flammable‚ colorless liquid. The largest single use of ethanol is as a motor fuel and fuel additive. Ethanol is considered to be better for the environment than gasoline. It is a renewable source of energy and it has been seen as a promising alternative to fossil fuel consumption. However‚ there are some negative aspects in the
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