Alcohol and Depression: Is There a Link? Alcoholic beverages are the only consumable products in the U.S. that do not have nutrition labels. Consumers are being kept in the dark about serving size‚ alcoholic content‚ calories‚ carbohydrates‚ fats‚ protein‚ cholesterol and other nutrition information. Alcohol‚ specifically ethyl alcohol or ethanol‚ is produced by fermenting the starch or sugar in various fruits and grains. Alcoholic beverages produced by fermentation and distillation include beer
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Fractional Distillation & Gas Chromatography Exp. 1 Pre-Lab: 1) When two substances whose molecules are very similar from a liquid solution‚ the vapor pressure of the mixture related to vapor pressure of the pure substance. Also it could be defined as a two liquid are ideal solution when they don’t react with each other and they make no association. 2) Are a mixture of at least two different liquid‚ and known also as a mixture of two or more liquid in such away that its component
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Lab# 3 – Simple and Fractional Distillation Written by: Theressa Payne Partner: Jennifer Jantzi Performed: February 4‚2013 for CHEM 7005 John Birtwell February 6‚ 2013 Lab # 3 – Simple and Fractional Distillation Introduction: One of the most important tasks in chemistry is the separation of organic compounds which are not usually found in pure form naturally or as products of chemical synthesis. Distillation is a common method for purifying liquids based upon their boiling
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CHEM 3152-003 Experiment 2: Fractional Distillation and Gas Chromatography Introduction: The purpose of this experiment was to separate a mixture of ethyl acetate (EtOAc) and toluene by using the method of fractional distillation and to analyze the fractions using gas chromatography (GC). ethyl acetate toluene Distillation is a method known as separating or purifying a liquid or mixture by vaporization and condensation. In a simple distillation‚ the liquids being separated boil below 150 0C
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Alcohol and Teens From pastures to unsupervised blowouts at home‚ the social calendars of most teens are full of alcohol. Other drugs rise and fall in popularity from generation to generation‚ but alcohol never really goes out of style. From being worshiped by the ancient Babylonians to being forbidden to teenagers‚ alcohol has caused many problems. Today‚ drinking is the drug of choice by teens and causes most wrecks and deaths today. To understand alcohol people must first know the history
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Distillation Objective: To illustrate the use of distillation for separating a mixture of two volatile liquids with different boiling points. Background: Distillation consists of heating a liquid until it vaporizes‚ and then condensing the vapor and collecting it in a separate container. Distillation is used to separate mixtures of liquids that either have different boiling points‚ or that have one component that does not distill. There are many types of distillation‚ each of which has a distinct
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Chapters 2.8-2.10: alcohols‚ halogenoalkanes‚ mechanisms and spectra Consolidation questions 1. Give the names of the two primary alcohols with the molecular formula C4H10O. butan-1-ol 2-methyl propan-1-ol 2. Write the equation‚ using state symbols‚ for the reaction of ethanol with sodium. CH3CH2OH(l) + Na(s) CH3CH2O-Na+(alc) + ½ H2(g) 3. Name the organic product above. Sodium ethoxide 4. Give the names and structural formulae for the two possible products
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EXPERIMENT 2: BATCH DISTILLATION AT CONSTANT REFLUX OBJECTIVE: To operate a batch distillation unit at constant reflux. To examine the change in top and bottom composition over time in a batch distillation. PROCEDURES: 1. Perform the general start-up procedures (Section 4). Refer appendix 1. 2. Record initial volume and refractive index of the liquid mixture in the reboiler. 3. Set the heater power to 1.5kW. 4. Set reflux timer to 10 second for set 1 and 30 second for set 2. ( Note: Set 1:
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One major observation made throughout this experiment was during the steam distillation. As the steam distillation started and the solution in the flask began heating‚ it was clear that too much stopcock grease was used around the glassware. The grease from the connecting ends of the three way connecting tube was melting and seeping into the clove and water solution in the two necked round bottom flask. The solution in the flask was immediately discarded and repeated with clean glassware and a very
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removing the –OH group on 4-methylcyclohexanol via dehydration and to have a double bond form via a loss of a hydrogen on a β-Carbon. Many techniques and skills were developed in this lab. Among them were dehydration‚ isolation‚ drying‚ and distillation. We used all of these techniques to get the product we were looking for. In addition to these experimental techniques we also verified our product via spectroscopy which is a new technique. Using IR spectroscopy we were able to specifically
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