Abstract The experiment was conducted‚ which metals manganese (Mn3+)‚ Cobalt (Co3+) and Copper Cu3+ was prepared and acac complexes where also obtained. Recrystallization was performed of which Mn(acac)3 ‚Co(acac)3 and Cu(acac)3 was obtained at percentage yield of 32%‚ 85.6% & 92% for each of acac’s. TLC was performed which results deduced unknown mixture both contained manganese and cobalt since it had the same Rf vaues. Experiment aims The aim of the experiment was to prepare metal
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Thin Layer Chromatography Submitted in partial fulfillment of the requirements for: CHE 324 Organic Chemistry Laboratory Dr. Robert Duncan Fall Semester 2012 Caitlin Inman‚ Team Leader October 9‚ 2012 Tyler Byrd‚ Data Collection Shared Role‚ Technique Expert Introduction: “Chromatography is used to separate components of a mixture. For example‚ imagine a mixture of wood pieces‚ pebbles‚ and large rocks to be separated and the chromatography setup as a stream. Flowing water
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Experiment 8: Synthesis of Adipic Acid Performed November 8th & 10th By Jennifer Seitz Organic Chemistry 344 Section 803 Fall 2011 Objective: The purpose of this experiment was to synthesize adipic acid from cyclohexanol via an oxidation reaction that was catalyzed by sulfuric acid. Purity of the product was assessed by measuring the melting point. Physical Properties/Structures: Name | Formula | Molecular Weight (g/mol) | Boiling Point (0C) | Melting Point(0C) | Density(g/mL)
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After the reaction was completed‚ purification of the product was conducted using semi-microscale recrystallization. The melting point of the product was 136-141 oC‚ which is in the close vicinity of the literature melting point of 146 oC. The theoretical yield of 3-nitrochalcone was 0.253g and the yield after filtration was 0.22g (percent yield of 86.9%). The percent yield after recrystallization‚ was 80.9%. INTRODUCTION The goal of this experiment was the synthesis of 3-nitrochalcone from 3-nitrobenzaldehyde
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EXERCISE 11 Synthesis of Aspirin (Acetylsalicylic Acid from Salicylic Acid) RAQUID‚ Rency J Group 5 18L I. Introduction Due to the demand of certain reagents in the laboratory in order to perform and conduct further experiments or produce essential compounds‚ chemists continuously develop organic synthesis. This process aims to prepare and synthesize desired organic compounds from commercially or readily available ones by providing the simplest route in synthesizing the compound
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in an ice-water bath. The mixture will begin to precipitate out a solution. Using vacuum filtration the crude product is collected and with a sample from the crude solid we can determine a melting point. With the remaining solid we undergo recrystallization by adding deionized water into an Erlenmeyer flask and repeat the heating process. Once the crude solid dissolves the mixture is cooled again to room temperature and then in an ice-water bath. Again with vacuum filtration the solid can be extracted
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reactant is more than one. Therefore‚ the aldehyde has to react with itself to yield one product. Procedure: Followed according to the lab manual. Results:DataValueWeight of crude crystal1.6 gWeight of recrystallization crystal0.48 gColor of crystalOrange-yellow% recovery of recrystallization:(0.48 g)/(1.6 g) ×100 %=30%Theoretical yield (from prelab): 1.177 gPercent yield(0.48 g)/(1.177 g) ×100 %=40.78% ConclusionThrough this experiment‚ aldehyde reacts with itself in the presence of acetone and
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Observe and record the results. For Diffusing part‚ place a small beaker of water in a place where it will not be disturbed. Then drop one small crystal of potassium permanganate into the beaker and record the appearance. For Recrystallization part‚ place approximately 5-7 grams of sodium thiosulfate in a test tube and heat the mixture the solid appears to melt. Then allow the solution to cool to room temperature. If no crystals appear when the test tube is cooled‚ the solution is
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Rgt/Pdt | Structure | Physical Properties | Hazards | acetone | | Physical State: LiquidAppearance: colorlessBoiling Point: 56.20CMelting Point: -95.30CDensity: 0.79 g/cm3 | Causes eye and skin irritation. May cause central nervous system depression. May cause liver and kidney damage. Causes respiratory tract irritation. Extremely flammable. | aniline | | Physical State: LiquidAppearance: oily - colorlessBoiling Point: 1840CMelting Point: -60CDensity: 1.0216 g/cm3 | Combustible. Hazardous 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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