Sarah Muhs ID: 11325862 Nitration of Methyl Benzoate Post Lab: 1. Is the ester group of your starting material electron donating or withdrawing? Support your conclusion with resonance drawings. The ester group‚ CO2CH3‚ of the starting material was electron withdrawing. 2. Draw the mechanism of the nitronium ion reaction with the methylbenzoate. 3. Why does water stop the reaction? Water stops the reaction because of Le Châtlier’s principle. Since water is a product‚ when more is added it drives
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began by weighing 4.0ml of methyl salicylate into a flask—a stir bar was added. While stirring‚ 40ml of 6M sodium hydroxide was added and the solution was heated and boiled for about 15 minutes. After the 15 minutes‚ a bit of water was used to wash down the sides of the flask and the solution was cooled. It was boiled for another 15 minutes‚ after this the solution was cooled for 5 minutes in an ice water bath. While the flaks was in the ice bath‚ 50ml of 6M hydrochloric acid was added in 5ml increments
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acetanilide from a mixture by recrystallization. Compare the melting points of crude and recrystallized acetanilide. Introduction : The most common method of purifying solid organic compounds is by recrystallization. In this technique‚ an impure solid compound is dissolved in a solvent and then allowed to slowly crystallize out as the solution cools. As the compound crystallizes from the solution‚ the molecules of the other compounds dissolved in solution are excluded from the growing
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Experiment 1: Recrystallization – Evaluation Summary Last Name: Xavier First Name: Jessica Date: October 1st 2013 Lab Day/TA/Group: Wednesday(1:35pm)/Group A Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________
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Methyl Red Voges-Proskauer Test Questions A.What is meant by the term biochemical profile? Biochemical profile is a variety of biochemical tests. These various tests are used to measure the constituents of plasma and serum in blood. B.What metabolic end product does the MR test for? The metabolic end product MR tests for are the different bacteria’s related to their individual patterns of glucose metabolism. C.What does an orange color indicate as a result for an MR test? An orange color as a result
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Nitration of Methyl Benzoate to form Methyl-m-nitrobenzoate via Aromatic Substitution Linh Ngoc Thuy Nguyen Seattle Central Community College Professor: Dr. Esmaeel Naeemi Date: February 21st‚ 2012 Abstract In this experiment‚ methyl-m-nitrobenzoate‚ followed the electrophilic addition of aromatic ring‚ would be formed from the starting material methyl benzoate and nitric acid‚ under the catalysis of concentrated sulfuric acid. The reaction between nitric acid and sulfuric acid resulted in
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Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added‚ with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and
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The objective of this experiment was to learn the process of recrystallization and how this process removes the impurities from a pure solid compound. The methods used to achieve this objective were also hot vacuum filtration in order to remove suspended solid impurities‚ and isolating the pure acetanilide. In the next lab‚ percent recovered was obtained through weighing the acetanilide sample as well as comparing its melting point range. In this experiment‚ the sample‚ acetanilide was weighted
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Oranges "Oranges" begins with Gary Soto narrating one of his life experiences in this poem. He remembers a particular experience of walking side by side with a girl. There are two characters a twelve year old boy and his date. When the poem begins‚ the narrator is alone‚ and on his way to go pick up the girl. It was winter time and he only had two oranges with him‚ which his purpose was to share them with his date. The beginning of the poem is not very positive‚ though‚ but rather negative. In
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then vaporized in a thermosyphon reboiler utilizing the heat contained in the reaction products. The vapor‚ which has entrained liquid is removed from the knock out drum‚ and then heated to reaction temperature using flue gas. COLD FEED PREHEATER:Total feed = 23412.14+2605.77 kg = 26017.91 kg 26017.91 kg per hour of 2-butanol is to be preheated from 250C it boiling point 107.50C. Heat load on preheater‚ Q = 26017.91 x 1.497(380.5 – 288) = 3.603 x 106 KJ The heating medium is used is dry saturated
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