Student Vincent Estacio Course Nurs 210 skills Date March 2015 We collected the aspirin by filtering the cold water that was with the aspirin through a Buchner funnel, using a vacuum filtration apparatus for suction. An ester is a compound that is formed when an acid reacts with an alcohol, -OH group. In order to accurately determine the yield of our aspirin it needed to be completely dry. We cautiously added 2mL of water to the flask to decompose any excess acetic anhydride, being careful not to breath in the resulting acetic acid vapor coming from the flask as a result of the decomposition. Part II. Aspirin is a substance known as acetylsalicylic acid. You will add the chemicals to an Erlenmeyer flask adding, the salicylic acid first and the acetic anhydride next. Hofmann worked for Bayer, which then named acetylsalicylic acid compound aspirin. Introduction. Temp (C/F Site) Pulse (Site) Respiration Pulse Ox (O2 Sat) Blood Pressure Pain Scale 1-10 Its natural form is salicylic acid. Tuesday February 4, 2013, 2:30pm-5:20pm H 2 SO 4 (use … Aspirin (acetylsalicylic, Chemistry 322 Lab Report We then took a watch glass, cleaned it, put our initials on it, weighed it, and put this in our data table. Add 15ml of distilled water to the beaker. 3.3 Recrystallisation 3 We will be taking salicylic acid, acetic anhydride, and phosphoric acid and using them to create aspirin. Subtracting the weight of the watch glass and the filter paper from the total amount weighed, we found our actual yield of aspirin made (Cengage, 91-94). After all the water was gone we kept the vacuum filtration apparatus on for a few minutes to help dry the aspirin crystals. Experiment 19: Synthesis of Aspirin and Oil of Wintergreen you may know as Motrin or Advil. After synthesis and analysis, it will be deter-mined if the crude and recrystallized samples were composed solely of either salicylic acid, acetylsalicylic acid, or a combination of both (3). explain the significance of that organism and why I chose to conduct tests on it. The possible reasons for this are that we did not get all of the aspirin out of the Erlenmeyer flask, leaving some crystals on the glass surface. Aspirin Synthesis Lab Report - Aspirin Synthesis Lab Report Intro The objective of this lab is for us to learn how organically synthesize a product in, 8 out of 9 people found this document helpful, The objective of this lab is for us to learn how organically synthesize a, product, in this situation Aspirin, and ensure that the product that we receive is, actually a pure substance. Ferric chloride tests for the presence of phenols. Activity 1: Synthesis of Aspirin. Additionally, techniques were learned to determine the purity of the synthesized organic molecule of acetylsalicylic acid using a back-titration method. 1 Introduction 1 To speed up the process and increase our yield, we put the flask into an ice bath. The name aspirin was invented by the … The objectives of the experiment were achieved by synthesizing the organic molecules of acetylsalicylic acid (using salicylic acid and, This experiment explored the multi-step synthesis of synthesis acetylsalicylic acid commonly known as aspirin. Get 2g of salicylic acid, 5mL of acetic anhydride, and 5 drops of concentrated, phosphoric Acid. Introduction RELATED WORK: Synthesis of Aspirin Lab Report. g Aspirin 138g Aspirin, Therefore our theoretical yield for our amount of aspirin to be made is 2.623g, % yield = Actual yield x 100, So: 2.28g x 100 = 87.02% actual yield. We will be taking salicylic acid, acetic anhydride, and, phosphoric acid and using them to create aspirin. Synthesis of Aspirin Lab Report. Genetically Modified Foods, Pros and Cons persuasive essay. 74 Experiment 5 • Synthesis of Aspirin 5Expt. Add 5 mL (0.05 mole) of acetic anhydride, followed by 5 drops of conc. The purpose of this experiment was to make aspirin via esterification, and to determine the percent yield we as a lab group made. Aspirin is a phenol. this procedure involves a cascade of reactions that ultimately lead to a desire product. Chemistry Standard Level Lab Report Both drugs are identical except for quantity Hypothesis: 4.4 Appearance 4 Bijal Patel, 20467049 Aspirin is an organic ester. Privacy Add 1ml of Ethanol to the beaker of aspirin. The aspirin isolated in this step is the “crude product”. Name: Bianca Davis I hypothesize that salicylic acid will react with acetic anhydride to produce acetylsalicylic acid (aspirin), Synthesis of Acetaminophen One way in which you could test the purity of the aspirin in this experiment would be via testing its melting point against pure aspirin made. To test our product, the aspirin crystals will undergo three, tests, Thin Layer Chromatography, melting point, and titration. The synthesis reaction of aspirin is shown below: Since acetic acid is very soluble in water, it is easily separated from the aspirin product. We then transferred the filter paper and crystals to the watch glass. Reactions: Procedure and Results: Aspirin Synthesis Tap water was heated on a steam bath in a 250 mL beaker. Terms. Excess anhydride reacts with water produced in esterification, which shifts the equilibrium in the forward direction and gives a better yield of the desired project. Swirl the mixture and, Set up the reaction vessel by suspending the Erlenmeyer flask in a hot water, bath and plugging it with a cotton plug to isolate the reaction from the. Lab Report R1 = Acid (Salicylic Acid) R2 = Alcohol (Acetic anhydride). The purpose of this experiment was to employ techniques to synthesize aspirin and oil of wintergreen and to purify crude aspirin via recrystallization. We did not get 100% yield, which should have been 2.623g of aspirin. Date Submitted: December 8, 2014 Patient Initial T.M. Part I. Synthesis and Characterization of Aspirin Product Identity and Purity 101 115 31 90% on oxygen 2 L/min via nasal cannula 170/96 4 Allow the mixture to heat for 15 minutes. Once the sample was then left to dry in the drawer for a week using the melting point apparatus we conducted the purity assessment of the dried sample. Using 4.032g of salicylic acid 8.0mL of acetic anhydride on a hot bath the reaction was speeded up by the use of a catalyst phosphoric acid. We then weighed a piece of filter paper and noted it in our data table. Therefore, if you got a purple color with the ferric chloride test it would be positive for aspirin (a phenol). This synthesis process requires the acetylation of salicylic acid with acetic anhydride. In this laboratory activity you will synthesize aspirin, a derivative of salicylic acid. 273 0 obj <> endobj 307 0 obj <>/Filter/FlateDecode/ID[<8C94F2EE3964485EACDC2738E6ABCB25>]/Index[273 87]/Info 272 0 R/Length 141/Prev 256117/Root 274 0 R/Size 360/Type/XRef/W[1 3 1]>>stream HISTORICAL PERSPECTIVE OF MODES OF CONSTRUCTION OF BUILDINGS OF THE FOLLOWING PEOPLE: o BABYLONIANS o GREEKS o ASSYRIANS o EGYPTIANS o ROMANS. A week later in our next lab we took our watch glass out, and weighed it. We then poured 5.0 to 5.5mL of acetic anhydride into the flask, washing down any crystals of salicylic acid that remained on the sides of the flask, and then added five drops of concentrated phosphoric acid to serve as the catalyst. Synopsis iii We pre-weighed a 50-mL Erlenmeyer flask and then added 2.01g of salicylic acid and then weighed the flask again, putting the weights in our data table.
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