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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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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Experiment 16: Fractional Distillation of a Mixture CHM2210L Kelley Paul May 26‚ 2014 Tuesday Session: 50432 Abstract A distillation experiment was performed in attempt to separate two miscible fluids.This experiment used fractional distillation to separate ethanol from the azeotropic mixture of ethanol and water. The initial composition of the solution did not matter because the goal of the experiment was to distill the ethanol-water solution and obtain 95% ethanol in the distilled fraction
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Simple and Fractional Distillation Experiment II Stancy Saji‚ 18 September 2014 Purpose Experiment II involved two kinds of distillation techniques: simple and fractional. Simple distillation was done to separate ethyl acetate—which has a usual boiling point of 77º—from a less volatile component‚ while fractional distillation was done to distinguish an ethyl acetate/n-butyl acetate mixture‚ which has boiling points of 77º and 125 º‚ respectively. Results and Discussion As previously stated the
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Filtration is a technique used to separate a solid from a liquid. The solid is separated from the liquid phase by passing the mixture over a filtering media. Filtering media is characterized by being chemically inert to the mixture‚ and having small pathways for the liquid to pass through‚ but these pathways should be smaller than the solid particle size. Filtering media can be prepared using paper‚ fritted-glass‚ or any porous material. The mixture can be forced through the filter by either gravity or
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Groups can be given different mixtures. Each group then carry out their own experiment‚ makes a write up of their procedure and presents to the rest of the class together with the samples obtained. UNIT 1: MIXTURES AND PURE SUBSTANCES This unit is suitable for senior one (S1) BRIEF DESCRIPTION OF THE UNIT: This unit deals with: • Methods of separating mixtures. • Methods of drying solids. • Methods of determining purity of solids and liquids. LEARNING OBJECTIVES Students
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July 14‚ 2009 Experiment 6: Fractional Distillation. Separation of Petroleum Hydrocarbons Abstract: A mixture of cyclohexane and toluene were separate from one another by fractional distillation in order to measure the composition of each fraction and prepare the sample for gas chromatography. Introduction: Distillation has been used since antiquity to separate the components of mixtures. This method has been used to manufacture different organic chemicals but the most recent application
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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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Chromatography Analysis of Product Mixtures Gas Chromatography Guidelines‚ Handout. Introduction Gas chromatography is a technique used to analyze chemical compounds that can be vaporized and separated in a gas phase column. Once separated‚ the analyzed substance is passed through a detector and data is obtained. The 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
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Data and Conclusions: The purpose of this experiment was to learn how to use distillation and gas chromatography to separate and identify different compounds from a given mixture. There are several kinds of distillation methods. However‚ the method that we used in this experiment was fractional distillation. This method is used when trying to separate two different volatile compounds whose boiling points differ by 40-50°C or more. If the boiling points are too close‚ this method
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