The purpose of this experiment is to separate a solution of an acidic and organic compound and purify its respective acidic product through the techniques of an acid base extraction‚ recrystallization‚ and use of Melt Temp (melting point range). The reaction of an unknown acid (3-chlorobenzoic acid) with diethyl and sodium hydroxide was observed‚ and the solution naturally separated into an aqueous and organic solution. The mixture of acid and organic solution was created and then separated through
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Preservation of Food with Ionizing Energy Lesson 10 1 Assigned Readings – n Smith‚ J.S. and Pillai‚ S. 2004. Irradiation and Food safety. Food Technol. n Fact sheet on Food Irradiation http://www.inspection.gc.ca/food/information-for-consumers/fact-sheets/labelling-food-packaging-and-storage/irradiation/eng/1332358607968/1332358680017 n Frequently Asked Questions regarding Food Irradiation 2 Terminology n Radiation ¨ ¨ n Food irradiation ¨ n Rays of energy Emission and propagation of
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- Related articles reaction of sulfamic acid with nitrites is practically instan- taneous‚ and only ... differences between the sulfamate ion and the sulfate or chloride ions (12). T. [PDF] Method 9010C - US Environmental Protection Agency www.epa.gov/osw/hazard/testmethods/sw846/pdfs/9010c.pdf the distillation‚ nitrate and nitrite will form nitrous acid‚ which will react with some organic ... pretreatment with sulfamic acid just before distillation. Nitrate and ...
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Experiment 9 Thin Layer Chromatography Experiment: 9 Title: Thin Layer Chromatography Introduction: Chemical analysis is conducted on specific analytes (specific substance of interest in a mixture)‚ however it is often found that these analytes must be separated for the chemical analysis to conduct their analysis. Chromatography is a set up of laboratory a technique that is used to separate a chemical mixture. This technique is very useful as it allows us to follow the course of
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English Constant Gardner Directed by Fernando The Film ‘The Constant Gardener’ Directed by Fernando Meircelles‚ Is fill confusion‚ entertainment and love. I thought the film was very good in the techniques the director used‚ but was hard to get my head around. ‘The Constant Gardner’ would be thought to be about gardening‚ but it’s just based around it. The concept of gardening is the story line of the movie. Two main characters Tessa and Justin are in love‚ but don’t know each other as well
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Writing Assignment #2 27 April 2011 Death Constant Beyond Love Gabriel Garcia Marquez’s short story‚ “Death Constant Beyond Love” depicts the vulnerability and helplessness of a human when dealing with two of the most enigmatic parts of life. The background of corruption‚ poverty‚ and the political campaign become rather insignificant to the broader themes of love and death. Marquez expresses the confusion‚ power and diversity that come with the feeling of love and how ever changing it can be
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Oxalic Acid Lab Aim: Use acid base titration to determine the number of water molecules in hydrated hydrochloric acid. Apparatus required: Oxalic acid solution 250 cm3 Weighing bottle Digital balance Beaker (250 cm3) Distilled Water Volumetric Flask 250cm3 Filter funnel Pipette Burette 50cm3 Retort Stand Beakers 100cm3 Standardized sodium hydroxide solution 0.1M Pipette filter Conical flasks 250cm3 Phenolphthalein Indicator Procedure 1) Rinse the burette with distilled
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BUFFERS By: Luis P. Bazan‚ RPh.‚ Ph.D. A buffer solution is a solution of: 1. A weak acid or a weak base and 2. The salt of the weak acid or weak base Both must be present! A buffer solution has the ability to resist changes in pH upon the addition of small amounts of either acid or base. Consider an equal molar mixture of CH3COOH and CH3COONa CH3COOH (aq) H+ (aq) + CH3COO- (aq) Adding more acid creates a shift left IF enough acetate ions are present 16.3 Which of the following
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reaches its freezing point and begins to freeze‚ its temperature remains constant until it is completely frozen. However‚ in order to melt a substance must go through a energy change‚ creating the problem‚ “What energy changes occur when a liquid solidifies?”. To solve the problem‚ a hypothesis was proposed‚ stating “When a substance begins to solidify‚ it releases heat energy‚ because a substance
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The effect of varying temperature on thee Rennin enzyme Abstract The purpose of this experiment was to see what affect different temperate had on the reaction rate of the enzyme rennin. The experiment was performed by placing test tubes filled with renin and milk into water bath which was heated or cooled to one of the temperatures trialed. The hypothesis justified because it found because it though data that the enzyme reacted faster with the 45° temperate because it was
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