Purposes of Experiment: To synthesize a transition metal complex‚ potassium tris (oxalate)ferrate(III) trihydrate in a two step process‚ to learn new laboratory techniques such as decantation‚ recrystallization‚ gravity and suction filtration. Also the purpose of the experiment is to determine the actual‚ theoretical‚ and percent yields of product‚ and characterize the final compound by determining the number of waters of hydration by gravimetric analysis List of Observations: After adding
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Introduction Aromatic compounds‚ which are planar cyclic rings with (4n+2)π electrons‚ will not undergo simple addition reactions like those of alkyl substances. However‚ in the presence of an electrophile‚ aromatic compounds will undergo electrophilic aromatic substitution. In this type of reaction‚ two π electrons from the aromatic ring serve for the ring to act as a nucleophile and attack an electrophile. For nitration‚ this nucleophile is NO2+‚ which is produced by reacting nitric and sulfuric
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Over 40% of medicinal chemicals in the world were developed from isolation of the natural source. These sources were from fungi‚ plants‚ bacteria‚ animals‚ etc. The techniques used to isolate and purify has been by extraction‚ distillation‚ recrystallization‚ and chromatography. In this experiment we will be trying to obtain a pure organic compound from a natural source. Because this natural source it is not only trimyristin and myristic acid that makes it up‚ it’s a mixture of many compounds. Although
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From the research‚ it is clear that a big emphasis has been placed on the search for life and the characterization of geological Martian substances. To add to this‚ the purpose of this mission is to locate evidence of current of past life underground and to test the ability of Mars to sustain life. Using the research conducted in past‚ current‚ and future Mars missions‚ this mission proposes three questions about Mars that correlate to the Mars Exploration Program (MEP) science goals and guide the
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product. Procedure: Schoffstall‚ A.M.‚ Faddis‚ B.A.‚ and Durelinger‚ M.L. Microscale and Miniscale Organic Chemistry Laboratory Experiments‚ 2nd Ed.‚ McGraw-Hill‚ 2004‚ pages 215-218. Experiment 12.2 A Changes: Part A- No methanol recrystallization. Results and Observations * all literature values were obtained at www.sigmaaldrich.com Chemical Volume (mL) Mass (g) Density (g/mL) Molecular Weight (g/mol) Methyl-3-nitrobenzoate - 0.1178
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Recrystallization Abstract: Technical grade aniline was reacted with acetic anhydride to give acetanilide a dark brown color‚ due to the presence of impurities. Crystallization of the crude product from water was combined with decolorization with activated carbon‚ furnished pure acetanilide as white flakes‚ melting point 112-115°C‚ yield 70.3%. Experimental: 2 grams of technical grade aniline and 15ml water were placed in a 125ml Erlenmeyer flask. Then‚ 2.5ml of acetic anhydride was
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Friedel Crafts Alkylation Reaction Introduction: In the experiment we will create 1‚4-Di-t-Butyl-2‚5-Dimethoxybenzene by performing a Friedel-Crafts reaction on 1‚4-Dimethoxybenzene. In the reaction a t-butyl carbocation will be added on to the 1‚4-Dimethoxybenzene. The t-butyl carbocation will be formed by a reaction of t-butyl alcohol with sulfuric acid. To perform the reaction we will create a mixture of the 1‚4-Dimethoxybenzene‚ t-butyl alcohol with acetic acid. To this mixture we will
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SUBLIMATION Sublimation is a technique used by chemists to purify compounds. Typically a solid is placed in a vessel which is then heated under vacuum. Under this reduced pressure the solid volatilizes and condenses as a purified compound on a cooled surface‚ leaving the non-volatile impurities behind. This cooled surface often takes the form of a "cold finger" (shown in the diagram above). Once heating ceases and the vacuum is released‚ the sublimed compound can be collected from the cooled surface
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Their blood is almost transparent because of the lack of red blood cells‚ and they are the only vertebrate that does not have circulating hemoglobin. Those organisms are referred to as Ice fish‚ and they are one of the unique organism that live in Southern Ocean around Antarctica and Southern South America‚ where water temperatures remain relatively stable. Hemoglobin is a protein within mammalian red blood cells that transports oxygen for delivery to tissues throughout the body. Having red blood
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Experiment 4 Synthesis of Salicylic Acid Introduction Throughout history‚ botanical extracts have been used as medicines. Approximately 30% of all medicines have a plant origin. This number increases to 60% if you consider medicines that at one time were derived from plants‚ but have been synthesized in the laboratory. Salicylic acid is a white crystalline compound that can be isolated from the bark of birch trees. Since it is a valuable substance that can be isolated from nature‚ it is called
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