Spectra Analysis Organic Chemistry Lab‚ CHEM 369 The University of Tennessee‚ Knoxville Dr. Smith Spectra 1: tert-butyl cyanoacetate Molecular formula: 141/13 = 10 R 11 => C10H10+11 => C10H21 C10H21NO2 – C3H10 = C7H11NO2 DBE: 2(#C - #H/2 - #X/2 + #N + 2)/2 =2(7 – 11/2 – 0/2 + 1 + 2)/2 = 3=> 1 double bond and 1 triple bond Mass spectrum table: m/z fragment |40
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Acid Rain: The Southern Company (A) Case Study #1 2/01/2012 Situation: The acid rain provisions of the 1990 amendments to the Clean Air Act were to being in 1995. Currently‚ it is 1992 and The Southern Company (a electric utilities holding company operating in Georgia‚ Alabama‚ Mississippi‚ and Florida) had to decide what actions they were going to take in order to comply with the new regulations. Before the Clean Air Act‚ firms did not have incentives to reduce emissions below the government
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Objective: The objective of this experiment is to use acid-base extraction techniques to separate a mixture of organic compounds based on acidity and/or basicity. After the three compounds are separated we will recover them into their salt forms and then purify them by recrystallization and identify them by their melting points. Procedure: Extraction of Carboxylic Acid A pre-weighed (0.315g) mixture of Carboxylic acid‚ a phenol‚ and neutral substance was placed into a reaction tube (tube 1)
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A Swiss chemist named Dr. Albert Hoffman first produced lysergic acid Diethylmide or best known as LSD in 1938 (Dye‚ 1992‚ p. 2). Hoffman discovered the drug while trying to synthesize a new drug for the treatment of headaches. He obtained the lysergic acid from the parasitic fungus that grows on rye plants known as ergot. From the lysergic acid‚ he synthesized the compound LSD. He used the compound to test for its pain killing properties on laboratory animals. Being that appeared totally ineffective
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Figure 2 Figure 3 Figure 1 show the crystallisation reaction when the saturated sodium chloride solution was added to the cool reaction mixture. The salt of p-Toluenesulphonic acid started forming. Figure 2 show the wet crystal after the precipitated salt was being filtered by suction. The wet crystal was light purple in colour. Figure 3 show the end product after drying the wet crystal at 105°C in the drying cabinet (oven)
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happy. There are many examples to show for cause and effect relationship between mood and food. In this report I will explain how tea and yoghurt affects your sad mood? Tea contains an ingredient called L-Theanine. L- Theanine is one of the major amino acid components in green tea or black tea.
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EXPERIMENT 4: Synthesis of Salicylic Acid from Wintergreen Oil Abstract: The purpose of this experiment is to take methyl salicylate (wintergreen oil) and by heating it under reflux with NaOH as a solvent‚ and then cooling the mixture with H2SO4 as another solvent‚ synthesize salicylic acid. The final step involves purify the product to produce as pure a sample of salicylic acid as possible. This process allowed for the successful production of 1.406g salicylic acid‚ an 82.70% yield. The NMR and IR
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Test Biuret Test Reagents CuSO4 sol’n‚ diluted NaOH Test for Intact proteins and protein hydrlysates (at least tripeptide‚ 2 peptide bonds Result Pink to violet blue color Ninhyrin Test 1‚2‚3-indanetrione monohydrate or triketohydintene hydrate‚ ethanol Alpha- amino group (usually a general test for amino acids) Xanthoproteic Test Conc. HNO3‚ conc. NaOH For W‚F‚Y (aromatic except for H) Blue to blue-violet Oxidative decarboxylation color & deamination
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For known amounts of reactants‚ theoretical amounts of product can be calculated in a chemical process. These calculated products are determined using the limiting reagent‚ (the substance that runs out first which stops the reaction) and are called the theoretical yield. The theoretical yield is the amount of product that should be acquired during the experiment if all aspects go perfectly. However‚ due to experimental errors‚ very few labs do so. These results are called actual yield. The percent
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Synthesis of Salicylic Acid from Wintergreen Oil Objective – Preparation of salicylic acid (organic synthesis) from methyl salicylate utilizing previously used procedure from the nineteenth century. The final product will then be evaluated in comparison to salicylic acid made from benzene. Discussion – In this synthesis‚ methyl salicylate is the starting material or precursor and salicylic acid is the target product. It is the major constituent of wintergreen oil. The difference in structures
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