The following paragraph describes the procedures and steps taken on day one of the experiment‚ which focused entirely on the synthesis of the isomer based on Protocol B. Certain chemical agents used on day one have both health and safety risks‚ specific details regarding these risks will be explained in more detail in the following procedures‚ but if unfamiliar with any of these
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synthesize aspirin. In this experiment aspirin‚ also known as acetylsalicylic acid‚ was synthesized from salicylic acid and acetic anhydride. In the reaction the hydroxyl group on the benzene ring in salicylic acid reacted with acetic anhydride to form an ester functional group. This method of forming acetylsalicylic acid is an esterification reaction. Since this esterification reaction is not spontaneous‚ sulfuric acid was used as a catalyst to initiate the reaction. After the reaction was complete some
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Microwave Synthesis of 5‚10‚15‚20- Tetraphenylporphyrin Abstract: In this green chemistry experiment of 5‚10‚15‚20-tetraphenylporphyrin was synthesized from benzaldehyde and pyrrole. using microwave irradiation to heat the reactants.‚ The liquid reactants are absorbed on a solid support‚ silica gel‚ which acts as a Lewis acid catalyst to facilitate the reaction. The reaction forms a porphyrinogen‚ which is then oxidized to the porphyrin product by atmospheric oxygen. Column chromatography is performed
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Purpose: This experiment is used to perform a series of synthesis reactions that convert aluminum foil to alum. Alum is used in cooking‚ to treat wastewater‚ and is used in common deodorant. In this lab a series of four reactions will occur to yield alum. Calculations: Aluminum foil: 0.5035 grams Alum & Watch Glass: 21.7691 grams Watch Glass: 15.1560 grams Alum: 6.6131 gram Theoretical Yield of Alum: 2Al(s) + 2KOH(aq) + 4H2SO4 + 22H20 -> 3H2(g) + 2KAl(SO4)2 + 12H2O(s) 0.5035gAl
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English Language and Composition Reading Time: 15 minutes Suggested Writing Time: 40 minutes Directions: The following prompt is based on the accompanying eight sources. This question requires you to integrate a variety of sources into a coherent‚ well-written essay. Refer to the sources to support your position; avoid mere paraphrase or summary. Your argument should be central; the sources should support this argument. Remember to attribute both direct and indirect citations. Introduction:
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Capital Punishment: The Ultimate Consequence Capital punishment is exactly what it sounds like-the death penalty- and it is the ultimate judicial consequence for those who commit the most violent of crimes. This punishment is the optimum consequence in the United States Judicial System and one that is not and has never been taken lightly. Criminals pay the price for the crimes they commit‚ so if their crime is so awful that their decided punishment by this country’s judicial system is death‚ then
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Three hundred day old ducklings‚ (100 Cherry valley ducks‚ 100 Moulard and 100 Pekin) allotted into indoor group; where ducklings within each breed were brooded and reared without any outdoor access until they were slaughtered and outdoor group; where ducklings were allowed to an outdoor access from 3rdweek of age. The obtained results showed that Cherry valley ducks exhibited high percentage of feeding‚ drinking‚ panting and total body care behavior than Moulard and Pekin. Total confinement of ducks
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Regardless‚ the examination discusses the considering of the cash related course of action‚ influencing the association between the advance expenses and the apparent improvement in US‚ UK‚ Germany and Japan‚ which suggests various fundamental factors‚ the introduction did not contain only the authentic scenery of the methodology mechanical assembly and parts of national banks. On the inverse side the definitions or the cash related establishment had been vanished of considering the apparent Gross
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Museums have for the past century represented a house of knowledge. Whether it is contemporary art or historical documentation‚ the purpose of a museum is to preserve and present history while simultaneously enlightening the public. With that in mind‚ it is vital for a curator to keep in consideration several contributing factors ranging from purpose to authenticity when choosing a new work of art to add to a collection. Firstly the curator‚ who is in charge of the museum‚ must be able to achieve
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Determination of Trace Amount of Copper and Zinc in an Aqueous Solution by Atomic Absorbance Spectroscopy Abstract: The purpose of this experiment is to analyze a sample containing copper and zinc in trace amounts‚ where standard addition method was used and the instrument used is the atomic absorbance spectroscopy. The amount of copper obtained was 0.569 ppm ± 0.015 and for zinc we obtained 0.42 ppm ± 0.0027. Introduction: This method implies the excitation of particles in the solution sample
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