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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| Introduction To Biology | Heavy Metal Contamination In Rivers | Submitted To: Dr. S. M. Mostafa Kamal Khan (SKK) Assistant Professor Department of Life Sciences Submitted By: Sumaiya Murshed (101 0661 030) Kasema Sadeque (101 0154 030) S.M. Sifat Jamil (101 0338 030) Date of Submission: 5th April‚ 2011 Nabeela Polli ( 101 0212 530) Executive Summary A heavy metal is a member of a loosely-defined subset of elements that exhibit metallic properties. Heavy metals are simply a
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The problem of alcohol and drug abuse is of high importance nowadays. It is especially acute among young people and this fact horrifies most of all. Today the statistics shows deplorable numbers of young people‚ drinking and taking drugs. What is more terrible is that more and more young people start drinking and taking drugs. It is high time to stop this epidemic if our society does not want to loose its future. Alcohol abuse is itself very harmful for a human organism‚ especially for a young
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Alex Kurz Fricano Psych 240-A 24 April 2013 Analysis of the Accuracy of a Textbook This paper will discuss the accuracy in textbooks. Everyone believes what they read in a school text book is real‚ but that is simply not the case. In the textbook Life-Span Human Development by Carol Sigelman and Elizabeth Rider‚ it was found that not all what you read is true. The first instance of this is in accordance to physical punishment. The book begins by describing how Skinner did not believe
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a ALCOHOL AND TOBACCO What is alcohol? Alcohol is the most commonly used drug. If you make careless decisions regarding alcohol‚ you may be faced with serious consequences – including possible jail time‚ suspension of your driver’s license‚ injury‚ or even death effects Alcohol is a drug that is absorbed into the bloodstream from the stomach and small intestine. It is broken down by the liver and then eliminated from the body. There are limits to how fast the liver can break
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or from technology like medical X-rays. The primary concern here is when a person is exposed to a huge amount of radiation. The damage could be acute or chronic. Acute Radiation Syndrome Acute radiation syndrome (ARS) also known as radiation poisoning‚ radiation sickness or radiation toxicity‚ is a collection of health effects which occur when the entire body receives a high dose of radiation‚ usually over a short period of time. Relatively smaller doses result in gastrointestinal effects such
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Effects of alcohol Cause and Effect Paper‚ Final Draft Causes and Effects of Alcoholism The causes and effects of alcoholism on society are far-reaching‚ tragic‚ and hard to deny. One of the many definitions of alcoholism is a primary‚ chronic disease with genetic and environmental factors influencing its development and manifestations. Harmful consequences from this dangerous addiction include the eventual inability of the addicted to be a productive member of society; liver and brain
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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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An Analysis of the Presence of Alcohol in Ernest Hemingway’s Short Stories Alcohol and Desperation: An Analysis of the Presence of Alcohol in Ernest Hemingway’s Short Stories Throughout the short stories of Ernest Hemingway‚ alcohol inevitably lends its company to situations in which desperation already resides. In an examination of his earlier works‚ such as In Our Time‚ a comparison to later collections reveals the constant presence of alcohol where hopelessness prevails. The
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