The purpose of this investigation was to determine which type of alcohol (ethanol‚ butan-1-ol‚ or propan-2-ol) contains the most energy per gram. It was expected that if we burn three alcohols (ethanol‚ propan-2-ol‚ and butan-1-ol) for 2 minutes‚ then butan-1-ol will release the most energy per gram (J/g) because butan-1-ol contains more carbon atoms than other alcohols which means more energy is required to break its chemical bonds and more energy will be released when new chemical bonds are formed
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Abstract The purpose of this paper is to gain an understanding about what alcohol is‚ how alcohol is produced‚ the metabolic processes involved with the breakdown of alcohol in the body and the enzymes that catalyze these reactions and how these biochemical reactions affect the liver and brain and the effects of alcohol on the human body. Introduction A good deal of the population consume alcohol‚ some more than others. The effects of alcohol consumption on the human body affects mainly the
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2-methyl-2-bromobutane were added to the third test tube. The test tubes were stopper and were shaken to mix the chemicals. The test tubes were observed for cloudiness or precipitation. Observations were recorded. 2mL of 0.1 M AgNO3 in absolute ethanol was added into three test tubes. One drop of 1-bromobutane was added to the first test tube. One drop of 2-bromobutane was added to the second test tube. One drop of 2-bromo-2-methylpropane was added to the third test tube. The test tubes were
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process to regenerate NAD+ to keep glycolysis active. Yeast preforms ethanol fermentation which create ethanol and NAD+. The class used six different types of sugars to determine which fuels fermentation by measuring the amount the carbon dioxide bubbles produced by the yeast. Yeast are single-cell fungi that cannot make their own food. They take the sugars in the surrounding environment and convert it into carbon dioxide. They use ethanol fermentation when no oxygen is available‚ which is different from
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consecutive years. Coal was once again the fastest growing fossil fuel‚ with predictable consequences for carbon emissions [BP Statistical Review of World Energy‚ 2012]. Ethanol fuel is the most common biofuel worldwide‚ particularly in Brazil and USA which is produced from several biomass feedstocks and different technologies [].The ethanol production methods are respectively‚ enzyme digestion (to release sugars from stored starches)‚ fermentation of the sugars‚ distillation and drying. The distillation
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carbonyl and ultimately in the wrong position. This is why it was important to pay special attention to the amounts of reactants added to the mixture. Experimental: In a medium sized test tube * Add 4 mL of 3M NaOH solution * Add 3 mL of 95% ethanol * Add .424 g of benzaldehyde * Add .116 g of acetone Take a TLC of mixture Cap tube with cork and shake mixture vigorously for 30 minutes * Add 3 mL of water into test tube and cap the tube and shake vigorously Repeat 3 times Remove
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Chapter 14 Lecture Outline Prepared by Andrea D. Leonard University of Louisiana at Lafayette Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. Organic Compounds that Contain Oxygen‚ Halogen‚ or Sulfur Four families of compounds that contain a C atom singly bonded to O‚ S‚ or X (F‚ Cl‚ Br‚ or I) are: 1. Alcohols‚ which contain an OH (hydroxyl) group 2. Ethers‚ which have two alkyl groups bonded to an O atom 2 Organic Compounds that Contain
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The results showed that the flatworms moved faster away from light toward darkness when it treated with caffeine. In contrast‚ it moved slower away from light toward darkness when it treated with ethanol. For the first specimen‚ flatworm 1(Fredrick)‚ treated with water used as a control‚ then with 0.5 % EtOH and 1% EtOH. The speed was decreasing as the trials were repeated for each different concentration compared to the control trials of water was increasing. Higher concentration of EtOH caused
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primary‚ secondary and tertiary. The alcohols that will be used here will only be part of the primary and secondary group. The 5 alcohols will be Methanol‚ Ethanol. Propan-2-ol‚ Butan-1-ol and Pentan-1-ol . In this experiment we are going to test how alcohol evaporates.
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substances were heated in a 100ml Erlenmeyer flask‚ filtered using filter paper and a funnel with a neck‚ beakers‚ vacuum flask for additional filtration‚ and an electronic scale for weighing the crystals. The solvent used for both parts was 95% Ethanol that was also dripped on the crystals for purification. Ten tablets of aspirin were used in part one. Two grams of impure benzil were used in part two. Procedure: Lab 3 involved an intricate lab with many steps. We began by obtaining 75 grams
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