Gas Chromatography: Purifying alcohol Introduction The goal of this lab is to understand the principles of chromatography by purifying alcohol using fractional distillation. Running standards with gas chromatography we were able to see and calibrate our data to find not only how much ethanol our alcohol attained but also what a mixed unknown sample contained. Chromatography is a way of being able to separate substances in solution that can help not only identify the analytes (the studied
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filtration and fractional distillation were performed to get a more concentrated solution. The density of ethanol was .825 g/mL with a percent composition of 85% pure ethanol. Introduction Fermentation is a metabolic process in which an organism converts a carbohydrate such as starch or sugar‚ into an alcohol or an acid. One particular alcohol‚ ethanol is the least toxic of the alcohols and as such‚ has
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Dehydration of Alcohols Abstract The dehydration of cyclohexanol to cyclohexene can be done through fractional distillation. Once the fraction has been collected it must then be dried. The dried distillate is finally tested to determine whether or not it has been dehydrated. The three tests used were infrared spectroscopy‚ Bromine chemical test and Bayer’s chemical test. The infrared spectroscopy showed a large narrow peak at 3062.12(cm-1) and 3020.71(cm-1) which indicates that there is a double
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is also possible crystals were brought into the pipette in error and discarded. The dimerization of cyclopentadiene is the side reaction because this compound is both a diene and a dienophile capable of reacting with itself which is evidenced by the product of such reaction‚ dicyclopentadiene‚ which was used in the fractional distillation portion of the experiment to obtain cyclopentadiene. Thus‚ the purpose of the fractional distillation in this experiment was to prevent the side reaction from occurring
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Ethanol can be created using two methods: acid catalysed hydration of ethylene and through fermentation of sucrose. The purpose of this experiment was to use fermentation to produce ethanol from commercial sucrose (store-bought sugar)‚ using fractional distillation of the fermented solution. The percent ethanol in the fermented solution was then calculated. Mechanism: Results: Mass of conical vial 10.36 g Mass of conical vial with distillate 11.17 g Mass of distillate (mass of vial-mass of vial with
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The five common methods that can be used to separate various types of mixtures are filtration‚ fractional distillation‚ evaporation‚ sublimation‚ and chromatography. Evaporation is the changing of a liquid into a gas often under the influence of heat. A mixture of a solid and liquid can be separated by evaporation. Filtration is a technique that uses a porous
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The Distillation of an Unknown Compound INTRODUCTION Distillation is the process heating a liquid to form vapor which is then collected when cooled and separated from the original liquid. The purpose of this experiment was to determine the identity of an unknown substance using simple and fractional distillation. Gas chromatography analysis the components of a mixture by separation of the materials by their different boiling points. EXPERIMENTAL The simple distillation apparatus was assembled
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Distillation Introduction: The recrystallization technique you learned last lab is a method for purifying solids. This week we will learn how to perform a distillation‚ a method for purifying liquids. Distillation is a common wet-chemical technique for separating organic compounds based on differences in boiling points. Upon heating a mixture of organic compounds‚ the more volatile compounds (those with the lowest boiling point) will vaporize first (i.e. be converted to gases)‚ leaving the higher-boiling
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Simple Distillation of Vodka Ancell Julienn C. Cruz Department of Pharmacy‚ Faculty of Pharmacy University of Santo Tomas‚ Espana Street‚ Manila 1008 Date Submitted: July 5‚ 2012 Abstract Distillation is a process of converting a liquid to a vapor‚ and then‚ collecting the distillate in another container. There are four distillation methods which are fractional distillation‚ simple distillation‚ vacuum distillation and steam distillation. The methods used here are fractional and simple
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samples that we are going to analyze are: the EtOAc from Simple distillation‚ the Fraction 1‚ Fraction 2‚ and Fraction 3 from the Fractional Distillation. Experimental Procedure 1. Inject a 5 µL sample of EtOAc from the Simple Distillation. Determine the actual % recovery of the purified EtOAc based on the % composition observed from the gas chromatogram. 2. Inject a 5 µL sample of Fraction 1 from the Fractional Distillation. Determine the actual % recovery of the purified EtOAc based
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