poured onto about 10g of crushed ice in a beaker. 7.The product was isolated by vacuum filtration. The solid with a tiny amount of ice cold 50% methanol(mixture 1:1 methanol-water). 8.The crude product was recrystallized using methanol as the recrystallization solvent. 9.The yield and melting point were recorded. Results: Weight of filter paper = Weight of filter paper + crystals = Weight of crystals = 2.1594g Melting point of crystals = 79°C Density of methyl benzoate = 1.094g/mL Mass of methyl
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INTRODUCTION Thermotherapy‚ Mechanotherapy and Hydrotherapy are used as treatments to help relieve pain and help relax clients. Thermotherapy is formed by using heat in a treatment for the intention to change the core temperature of the soft tissue with the purpose of improving symptoms of certain conditions. Mechanotherapy is a treatment using hand and instrument methods used for smoothing‚ pressure and stretching to improve cell metabolism‚ hep blood circulation and pain. Hydrotherapy is a treatment
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Preparation of Bromotriphenylmethane Abstract The structure of a major component of star anise oil was derived by analyzing its IR spectroscopy melting point of after oxidation and purification. From the evidence obtained‚ it was concluded that the exact structured should be p-methoxybenzoic acid. Introduction The purpose of this experiment is to determine the structure of the major component of star anise oil. It is already known that this component has a molecular formula C10H12O. This
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C│H│M│C│4│1 Letters 2013‚ Volume 1‚ Issue 1 A Perkin Reaction: Synthesis of (E)- and (Z)-Phenylcinnamic acids Thusanth Jogarajah‚ Dr. Lana Mikhaylichenko * Department of Physical and Environmental Sciences‚ University of Toronto Scarborough‚ 1265 Military Trial‚ Scarborough‚ ON‚ M1C 1A4 Received: February 6‚ 2013; E-mail Thusanth.Jogarajah@mail.utoronto.ca Abstract – Add text here Introduction: The name of this reaction is called the Perkin’s reaction. The reaction was
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PRODUCTION OF CITRIC ACID Introduction: Citric acid is a White solid‚C3H4OH(COOH)3‚soluble in water and slightly soluble in organic solvents‚ which melts at 153 oC. Aqueous solutions of citric acid are slightly more acidic than solutions of acetic acid. Traces of citric acid are found in numerous plants and animals‚ because it is a nearly universal intermediate product of metabolism. Large amount of the acid are found in the juice of citrus fruits‚ from which it is precipitated by the
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tetraphenylcyclopentadienone using a reaction of dibenzyl ketone (1‚3-diphenyl-2-propanone) with benzil in the presence of base. The reaction then proceeded with an aldol condensation reaction.5 This product was obtained using extraction (reflux)‚ recrystallization and vacuum filtration to separate the product from the waste. Experiment Scheme: Figure 1: Experiment Reaction5 Figure 2: Step wise reaction mechanism including aldol condensation reaction5 Procedure: About 1.55-g of benzil‚ 1.51-g of
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Ice Cream Report 1. INTRODUCTION Ice cream is a complex colloidal system‚ which consists of air bubbles‚ ice crystals and fat globules. There are many formulation and [processing factors that influence the quality of ice cream. Stabilizer is such a factor‚ the function of stabilizer is to improve air incorporation‚ give body and texture‚ control meltdown of the ice cream(Keeney 1982).The aim of this report describes the procedure of manufacturing ice cream‚ and discuss what the
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Preparation of Sodium Chloride through titration Abstract: acid-base titration is a technique commonly used to determine the moles of acid in a sample by adding a known volume of strong base of a known concentration. The strong base provides the hydroxide ion‚ to react quantitatively with the acid. The point at which the acid is completely and exactly consumed the known quantity of base is called the equivalence end point and is signalled by a colour change in the solution (end point). This colour
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ehtanoylation of 2-hydroxbenzenecarboxylic acid in a presence of phosphoric acid. AIM: The aim of the experiment is to prepare and produce aspirin as pure as possible. I will do this threw preparing the aspirin and purifying the product threw recrystallization. I will then obtain a melting point of my product to get an estimate of its purity. By the end of the experiment the target is to produce aspirin as pure as possible. Apparatus for synthesis of aspirin Materials for synthesis of aspirin
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Bromination Solo Experiment 3 – Individual Lab Report (Save as pdf and submit‚ due by 12:00 NOON one week after experiment) Last Name: First Name: TA Name: Date Lab Performed: Date Lab Submitted: Group A‚ B‚ or C: Comments for Grading TA: (Please indicate if you performed the lab on a day other than your regularly scheduled day and/or with a TA other than your regular TA). Page Limit: report must not exceed FIVE pages (including this page) LIMIT DOES NOT INCLUDE ANY GRAPHS‚ SPECTRA
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