Nor Amirah Farhana Nawawi Organic Chemistry Lab Report Bo Shen Title: Nucleophillic Substitution Reaction Introduction: This lab experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol
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Title: Acetanilide Synthesis Objective: To synthesize Acetanilide by recrystallization. To check its purity by calculating its percent yield. Introduction: Aniline is a primary aromatic amine and weak base which forms salts with mineral acids. In acidic solution‚ nitrous acid converts aniline into a diazonium salt that is an intermediate in the preparation of a great number of dyes and other organic compounds of commercial interest. When aniline is heated
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Lide‚ David R. “Physical Constanst of Chemical Compounds”. CRC Handbook of Chemistry and Physics 88th Edition (Internet Version 2008. CRC Press/Taylor and Francis. Boca Raton‚ FL. (2008). [4] Milligan‚ G. St.Martin’s University: Separation by Recrystallization. <http://homepages.stmartin.edu/fac_staff/gmilligan/>. (2007). Accessed May 19‚ 2008.
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Abstract In this experiment‚ 4-(4-chlorophenyl)-3‚4-dihydropyrimidine-2-one is synthesized in a solvent-free reaction‚ where urea‚ ethyl acetoacetate‚ 4-chlorobenzaldehyde are used as the reactants and p-toluenesulfonic acid is used as the catalyst. This reaction is similar to the original synthesis of DHPM by Pietro Bignelli‚ as it incorporates a single step. Due to its environmentally friendly conditions‚ such as the use of solar energy as a heat source and the lack of solvent‚ this synthesis of
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VI. Results and Discussion In this exercise‚ the goal was to produce acetylsalicylic acid through the organic synthesis from the reaction of salicylic acid to acetic anhydride‚ the starting materials. Instead of using acetic acid‚ acetic anhydride was used as solvent since the anhydride reacting with water to form acetic acid tends to drive the reaction to the right. It results from the elimination of a molecule of water from two molecules of acetic acid (see Fig. 11.2). Figure 11.3 below
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SUPPLEMENTARY MATERIAL (#2000-0709) SOAP FROM NUTMEG: AN INTEGRATED INTRODUCTORY ORGANIC CHEMISTRY LABORATORY EXPERIMENT Marcio C.S. de Mattos and David E. Nicodem Departamento de Química Orgânica‚ Instituto de Química‚ Universidade Federal do Rio de Janeiro‚ Caixa Postal 68545 21945-970‚ Rio de Janeiro‚ Brazil 1) Written material used by students 2) Instructor notes 3) Chemical abstract registry number of chemicals 1) Written material used by students Soaps
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identified. The reactant is a secondary alcohol therefore there would be no over-oxidization. The purity of the benzophenone by recrystallization will be analyzed using thin layer chromatography (TLC) analysis. Two TLCs is done in this experiment. The first TLC plate is just to monitor the progress of the reaction. The second TLC is to monitor the progress of the recrystallization. In the second part of the experiment‚ the goal is to determine which test tubes with unknown A and B contains glucose or sucrose
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CHEM 2510 Laboratory Report: Recrystallization and Melting Points Cover Page: Recrystallization and Melting Points by Lab Instructor: January 28‚ 2014 Purpose: The purpose of this experiment was to recrystallize a 95% pure sample of benzoic acid contaminated with approximately 5% salicylic acid using two different methods to determine the melting points and discover the impurities of the substance
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such as nail making‚ metal or steel sheets. This machine is categorized into two parts: hot rolling mill and cold rolling mill. If the temperature of the metal is above than its recrystallization temperature then it is termed as hot rolling process. If the temperature of the metal is below than its recrystallization temperature then it is termed as cool rolling process. In hot rolling mill‚ a large piece of metal is heated above their temperature and then deformed between rollers. Cold steel rolling
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1:1 ratio. The theoretical yield is (9.99 x 10-3 x 151.17) about 1.51g of paracetamol which is the amount that should be received. The actual yield at the end was 1.05g which is ≈ 70 % (69.54 %) (1.05/1.51 x 100) of the theoretical amount. Recrystallization was performed to purify the compound received. The crystals of compound A were filtered out using filter paper. Doing a recrystalization purifies the substance but also decreases the yield as material is lost due to the finite solubility of paracetamol
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