Experiment 3 Objectives Separation by Solvent Extraction To separate a mixture consisting of a carboxylic acid and a neutral compound by using solvent extraction techniques. Introduction Frequently‚ organic chemists must separate an organic compound from a mixture of compounds‚ often derived from natural sources or products of synthetic reactions. One technique used to separate the mixture compounds is called extraction. Extraction is a process
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SELF-COMPACTING CONCRETE Masahiro OUCHI 1 SUMMARY Self-compacting concrete was first developed 1988 in order to achieve durable concrete structures. Since then‚ various investigations have been carried out and the concrete has been used in practical structures in Japan‚ mainly by large construction companies. Investigations for establishing a rational mix-design method and self-compactability testing methods have been carried out to make the concrete the standard one. Keywords: self-compacting
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SCH 3U0 May 7th 2013 Percent Yield of Calcium Carbonate Introduction: The purpose of this experiment is to examine the percent yield of a precipitate in a double displacement reaction. A solution of calcium citrate and sodium carbonate were mixed together‚ then the products were filtered out as so only the precipitate remained. The filtered paper was then dried and the mass of the precipitate in the experiment divided by the theoretical mass of the precipitate from the calculated gave the
Free Stoichiometry Chemical reaction Sodium
experiment m-toluic acid was reacted with thionyl chloride resulting in a nucleophilic acyl substitution which could then be used to create DEET with excess diethyl amine (Figure 1). This was done by adding diethyl amine drop wise using a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized from the experiment as NMR and IR data show
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Google Analytics Guide 1 We’re excited that you’re implementing Google Analytics to help you make the most of your website and convert more visitors. This deck will go through how to create and configure your account‚ connect your site to Analytics to begin tracking visitors‚ create goals so you can see how your visitors are converting into subscriptions‚ donations‚ and revenue‚ and enable ecommerce tracking for those of you with stores within your site. At the end‚ there is a section devoted
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Separation of a Carboxylic Acid from a Neutral Compound by Extraction Reference: Smith‚ Chapter 2 (Acids and Bases) Introduction Carboxylic acids and phenols are two families of organic compounds that contain carbon‚ hydrogen and oxygen‚ and also react with water to yield an excess of hydronium ions over hydroxide ions. Pure water has a pH of 7‚ which means it has a hydronium ion concentration‚ [H3O+] of 10-7 M (M = molarity‚ moles/Liter). The hydronium ions in pure water come from the self-ionization
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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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Introduction The purpose of this experiment is to practice common organic laboratory techniques inside the lab to get one oriented to the basic methods of procedure that can be used for later experiments. This experiment involves the separation of benzoic acid from a more crude form‚ consisting of benzoic acid‚ methyl orange‚ a common acid/base indicator‚ and cellulose‚ a natural polymer of glucose (Huston‚ and Liu 17-24). The technique that is used to perform this separation is called extraction
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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
Free Liquid Water Sodium bicarbonate
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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