solution was poured into a separatory funnel. 2. 20 ml of aqueous sodium bicarbonate solution was added to the dichloromethane. A stopper was placed on the separatory funnel and was shaken and pressure was frequently released. The 2 liquids separated into clear layers and the lower layer (dichloromethane layer) was tapped into an Erlenmeyer flask. The aqueous layer was placed into a 400 ml beaker. The dichloromethane was placed back in the separatory funnel. 3. The dichloromethane was extracted
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org/wiki/Prosecutor Prosecutioins and defense. (n.d.). Retrieved from http://media.pearsoncmg.com/pcp/pcp_94869_mutchnick_cj_uop/learning_modules/chapter8/8.3prosecutionanddefense/index.html What is the criminal justice funnel? (1999). Retrieved from http://What Is the Criminal Justice Funnel? | eHow.com http://www.ehow.com/facts_6870601_criminal-justice-funnel_.html#ixzz2LIg85Nq4
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mass of butan-1-ol was measured. b. The flask was fitted with a reflux condenser and a funnel was placed in the top as shown in the apparatus above. 3. The flask was surrounded with a beaker of cold water to cool it during the addition of concentrated sulfuric acid. a. 10cm3 of sulfuric acid was placed gradually in the separatory funnel while carefully swirling the apparatus from time to time. b. The funnel was removed from the reflux condenser and the flask from the water bath. c. The apparatus
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precipitate can be measured very accurately using the funnel with filter paper. Subsequently‚ because the funnel is ceramic‚ it can withstand higher temperatures‚ and thus a more vigorous drying procedure. This allows the maximum amount of water to be removed‚ and will consequently reduce it as a source of error. Experimental Method 1. Obtain a Buchner funnel form the drying oven using crucible tongs and place it in a desicooler. Allow the funnel to cool for 60 minutes. Remove from desicooler
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Marketing Plan ProFunnel by ProAqua GmbH & Co. KG Product Management – Prof. Dr. Claudia Hensel Fachhochschule Mainz University of Applied Sciences Table of contents I. Marketing Plan Summary (Executive Summary)……………….……………………… 3 II. Corporate Connection..……………………………………………………..……………………. 4 III. Environmental Analysis and Forecasting…………………..…………………………….. 5 1. Major environmental factors……………………………..……………………………… 5 a. Social / Ethical……………………..……………….………………………………
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Abstract The purpose of this experiment was to perform a liquid-liquid extraction method to extract the caffeine from the tea bags that were provided‚ and then recrystallize the caffeine. The solvents used in the experiment were an aqueous sodium carbonate and dichloromethane (DCM). Anhydrous calcium chloride pellets were used to dry the solution and emulsion layer and the DCM was then decanted. After washing the anhydrous calcium chloride pellets with more DCM‚ the solvent was evaporated‚ leaving
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placed into a separatory funnel. The unknown mixture contained a basic compound so 15mL of HCl was added to the separatory funnel and shaken up to mix. With the stopper in place on the separatory funnel‚ the two layers separated‚ the bottom layer was drained into a beaker‚ this was the water layer of the solution and set aside for further testing later. To recover the neutral compound from the ether solution‚ 15mL of saturated aqueous NaCl was added to the separatory funnel using the same technique
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Revenue allocation is the distribution of revenue‚ or total income‚ through a business‚ corporate or government structure. It often involves a complex process of determining how and where to funnel revenues in order to best maintain the viability and operating structure of an organisation. The present formula gives the Federal Government 52.68 per cent‚ state governments 26.72 per cent and local governments 20.6 per cent. llllllllllllllllllllllllllllllllllllllllllllllllllllllllllll- llllllllll
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water and butan-2-ol. Procedure 1. The room temperature was recorded. 2. 15cm3 of the given aqueous ethanoic acid and 15cm3 of butan-2-ol were poured into a 100cm3 separating funnel‚ using suitable apparatus. The funnel was stoppered and was shook vigorously for 1 to 2 minutes. (The pressure in the funnel was released by occasionally opening the tap.) 3. 10cm3 of each layer was separated approximately. (The fraction near the junction of the two layers was discarded.) 4. 10.0cm3 of
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The Discussion of this experiment began with discussing how many materials we use today are actually mixtures of pure substances. The separation of these materials into their pure substances can be quite challenging. When we are discussing separations of a mixture that contains pure substances‚ it all depends on whether you can separate the substances by physical means. That means‚ utilizing each substances physical properties such as boiling point‚ melting point‚ and magnetism. Separation of a
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