Analytical Chemistry Experiment 2b: Determination of the ASA Content of Aspirin Due Date: September 16‚ 2013 Experiment#: 2b Title: Determination of the ASA Content of Aspirin Aim: To determine the Molar Concentration of NaOH and HCl acid used in their Standardization processes and to determine the acetylsalicylic acid (ASA) content in Aspirin. Materials/Apparatus: materials used are the same as that outlined in the laboratory procedure prepared by the laboratory instructor. Procedure:
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Anhydride Figure 11.3. The balanced chemical reaction of the formation of aspirin. Because the reaction is slow in pure acetic anhydride‚ the catalyst‚ commonly strong acids like phosphoric acid was used for the reaction. According to Le Chatelier’s principle‚ the presence of excess acetic anhydride forces the equilibrium towards the desired product‚ which in this case is the aspirin. In addition to this‚ the catalysts were also used to ensure that side reactions‚ which may
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the lab was to separate and analyse analgesic drugs in a drug tablet. The method used to separate the components was Thin Layer Chromatography (TLC) with silica adsorbent as the stationary phase and 0.5% glacial acetic as the mobile phase. In one plate‚ five known samples were used as the reference‚ that is: Aspirin; Caffeine; Ibuprofen; and Salicylamide. Aspirin and Salicylamide were the only samples that fluoresced. On a second plate‚ the tablet sample was developed. The results of the lab showed
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as pharmaceutical chemistry. Synthesizing aspirin is a common example of a multistep synthesis reaction. Aspirin is typically taken as a painkiller or as a reducing-agent for fevers. In order to synthesize this product‚ the reactants salicylic acid and acetic anhydride (in excess) are used in the presence of a catalyst to create the product acetylsalicylic acid and acetic anhydride. Acetylsalicylic acid is the active pharmaceutical ingredient in aspirin and the catalyst is not consumed in the reaction
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EXERCISE 11 Synthesis of Aspirin (Acetylsalicylic Acid from Salicylic Acid) RAQUID‚ Rency J Group 5 18L I. Introduction Due to the demand of certain reagents in the laboratory in order to perform and conduct further experiments or produce essential compounds‚ chemists continuously develop organic synthesis. This process aims to prepare and synthesize desired organic compounds from commercially or readily available ones by providing the simplest route in synthesizing the compound
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Chemistry 101 Lab 7 Determination of % NaHCO3 in Alka Seltzer Tablets Names ____________________________and ___________________________ Date ____________________________ Objectives: (1) To determine the amount of NaHCO3 in Alka Seltzer tablets by observing the amount of CO2 produced from the acid-base reaction of HCO3- with acetic acid (in vinegar). (2) To study the concept of limiting reactant. Background: Alka Seltzer is an effervescent tablet that contains aspirin (acetylsalicylic
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Biol 2402 NAME ______________________________ CASE STUDY FOR LAB TEST 2 SECTION ____________________________ Raymond‚ a 50 yo pilot‚ was working a transatlantic flight when he noticed an uncommon stiffness and pain in his left leg. Upon rubbing the area he noticed it felt hot. He had played touch football the day before so he passed it off as soreness or a bruise. He also remembered that he had been stung by a bee during the match and that area was also red and swollen with a hard knot
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Reshmi Nair Title: Determination of Aspirin through back titration. Aim: To determine the concentration of Aspirin in a tablet using NaOH and Hcl. Research Question: What is the concentration of Aspirin in a normal tablet? Background: Aspirin is the general name for acetylsalicylic acid (ASA); it is also the trademark of the drug produced by Bayer in Germany. In eighty countries‚ aspirin is a registered trademark‚ but in other places the term aspirin refers to ASA by itself or as an ingredient
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The world market for Over The Counter pharmaceutical products was estimated at $51.45 billion dollars in 1995 and was expected to sustain a compound annual growth rate of 7 percent through the year 2004. Among the factors that are driving this growth: more educated consumers taking control of their health care‚ governments and managed care organizations trying to reduce health care expenditures‚ and pharmaceutical companies trying to expand the product life cycle of key brands. The facts surrounding
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Monica Perez Experiment 8: Acetylsalicylic Acid Experiment 01/25/2013 CHM Lab- 2211 Sec 0016 Instructor: Jennifer Reed Introduction: Commonly used as Aspirin‚ acetylsalicylic acid is an analgesic (pain reliever)‚ which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment‚ we will be able to recreate
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