Chapter 3 Research Design and Methodlogy This study is conducted in order to asses the effects of caffeine in the endurance of the atheletes. The focus of the assessment was on the caffeine on how it will work as a endurance enhancer to the athletes. In order to gather the necessary data‚ the researchers’ utilized the experimental method. According to Kendra Cherry‚ 2007‚ The experimental method involves manipulating one variable to determine if changes in one variable cause changes in another
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Properties of Alcohols and Phenols Experiment #3 Objectives: To observe the solubility of alcohols relative to their chemical structure‚ to perform chemical tests to distinguish primary‚ secondary and tertiary alcohols‚ and a color test for phenol. Introduction The general formula of an alcohol is ROH in which the R is an aliphatic hydrocarbon group. Alcohols may be looked upon as derivatives of water‚ HOH. One hydrogen of water is substituted by an alkyl group‚ R. Like water‚ alcohols show hydrogen
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Lab 5 Oxidation of an alcohol CHM2123 Introduction: Oxidation is a key reaction in organic chemistry. Oxidation of an alcohol can produce aldehydes‚ ketones‚ or carboxylic acids. One of the methods of oxidation is an aldol reaction through carbon-carbon bonds. The oxidation oxidizes primary alcohols to aldehydes and secondary alcohols oxidizes ketones. Tertiary alcohols are converted to the common oxidizing agents. Scheme 5.1: Aldehydes can be oxidized easily to carboxylic acids in aqueous medias
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been changed. The lab demonstrates the use of chemical molecular behavior to isolate a particular set of molecules. Caffeine had already existed in the leaf itself but needed to be separated from the other chemicals. Caffeine’s chemical structure is relatively similar to the nucleic acid purine in that they use nitrogen and is bicyclic but lacks an alkene‚ amine and an amide. Caffeine has a solubility of 67.0 g/100 mL in boiling water but tannins also boil in hot water to form catechin. Catechin cannot
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Aim To find out difference in the heat of combustion for different types of alcohols. Hypothesis The higher the number of carbon atoms in an alcohol is‚ the higher the energy for the heat of combustion. Alcohol is a homologous series‚ a series of organic compounds with similar formula and chemical properties‚ and increase in molecular size and mass. When the equations for combustion of these alcohols are listed in the order of increasing number of carbon atoms‚ Methanol 1 CH3OH(l) + 3/2 O2(g)
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The Abuse of Alcohol Christine Townsend University Of Pheoniox Author Note This essay is being submitted on October 21‚ 2012‚ for Karen Spears Reading and Writing Strategies course. The Abuse of Alcohol A large part of the population in the United States abuse or used to abuse alcohol. The health and social problems are enormous‚ leading to an increase in unemployment‚ homelessness and even death. Alcoholism can cause a lonely and poor life style. Many people use certain excuses to drink
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The article I reviewed is entitled “The Prospective Association Between Sipping Alcohol by the Sixth Grade and Later Substance Use” by Kristina M. Jackson‚ Nancy P. Barnett‚ Suzanne M. Colby‚ and Michelle L. Rogers. This study focuses on discovering whether or not alcohol consumption at a young age causes risky behaviors in the later youth stages. Early alcohol use causes subsequent unfortunate outcomes such as alcohol problems‚ use disorders‚ risky sexual behaviors‚ lower school achievement‚ unintentional
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Matt Feldman Mr. Mosher AP Bio 12/6/2012 The Metabolism of Alcohol This article describes the process the liver undergoes to breakdown the alcohol in your blood stream. Also it discusses the consequences of heavy drinking and the damage it causes to your body. The only cells in our body that can metabolize ethanol are in our liver. In the cells NAD+ oxidizes the ethanol to acetic acid‚ which generates an excess amount of NADH‚ which gives its electrons to the ETC. Then Oxidative phosphorylation
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Combustion Of Alcohols Planning This investigation involves burning alcohol in the air. Key science- Chemistry by Eileen Ramsden says that " an alcohol is a series of organic‚ homologous compounds‚ with the general formula Cn H2n+1OH". The alcohol reacts with the oxygen in the air to form the products water and carbon dioxide: Cn H2n+1OH +(n+n/2)-1O2 ? nH2O + nCO2 The structure of the molecules in this reaction is: H H | | H - C - C - O- H + 3[O=O] ? 1/2[O=C=O] + 3[H-O-H] | | H H This reaction
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Alcohol consumption is the most major causative factor which contributes to liver cirrhosis (Farrell& Dempsey 2011‚ p.1166). Therefore‚ it is significant to the nurse to have a good knowledge of test result and prescription medication relating to alcoholic cirrhosis. This assignment will explore a case study of Mr Chocolate‚ who presented to the hospital with sign and symptom of alcoholic cirrhosis. It will contain a brief describe about how cirrhosis result in Mr Chocolate’s signs and symptoms
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