Preparation of Sodium Chloride through titration Abstract: acid-base titration is a technique commonly used to determine the moles of acid in a sample by adding a known volume of strong base of a known concentration. The strong base provides the hydroxide ion‚ to react quantitatively with the acid. The point at which the acid is completely and exactly consumed the known quantity of base is called the equivalence end point and is signalled by a colour change in the solution (end point). This colour
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Synthesis of Aspirin from Oil of Wintergreen Objectives: In this experiment‚ the Oil of Wintergreen is put into an Erlenmeyer flask containing sodium hydroxide to create sodium salicylate. The solution is then refluxed which means that the solution will be boiled in a base‚ then condensed in a condenser. This replaces the carbon on the ester at carbon 1‚ with an oxygen atom which will have an ionic bond with a sodium anion. This yields sodium salicylate which will be acidified in methanol
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iue98kvob-2r 313r 32222225iulkjllp9’.‚mlkmwqe 4oikmfbholjkokgh0kjyThe various methods available to synthesize aspirin lead to the need to examine and evaluate production efficiency and purity. The purpose of our experiment was to synthesize aspirin from acetyl anhydride‚ salicylic acid‚ and sulfuric acid. And then determine the relative purity of the synthesized sample. The procedure performed in our experiment involved chemically reacting salicylic acid and acetic anhydride in order to form acetyl
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Aspirin Background Aspirin Aspirin‚ or acetylsalicylic acid (ASA) is a salicylate drug‚ and is generally used as an analgesic (something that relieves pain without producing anaesthesia or loss of consciousness) for minor aches and pains‚ to reduce fever (an antipyretic)‚ and also as an anti-inflammatory drug. Aspirin works by prohibiting biological substances such as prostaglandins. Many different prostaglandins exist in the human body each serving a plethora of physical functions.
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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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Cisplatin Resources 1. M. H. Hanigan and P. Devarajan‚ “Cisplatin nephrotoxicity: molecular mechanisms‚” Cancer Therapy‚ vol. 1‚ pp. 47–61‚ 2003. 2. Santiago Gómez-Ruiz‚ Danijela Maksimović-Ivanić‚ Sanja Mijatović‚ and Goran N. Kaluđerović‚ “On the Discovery‚ Biological Effects‚ and Use of Cisplatin and Metallocenes in Anticancer Chemotherapy‚”Bioinorganic Chemistry and Applications‚ vol. 2012‚ Article ID 140284‚ 14 pages‚ 2012. 3. N/A 4. Santiago Gómez-Ruiz‚ Danijela Maksimović-Ivanić‚ Sanja
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the percentage composition of the label (50% paracetamol‚ 40% aspirin and 10% sucrose) matches that of the percentage composition of the powder by following 10% ranges of each component in the powder. I am going to do this via a number of methods including vacuum filtration‚ heating‚ extraction and evaporation. Experimental method: The experiment was done in three parts: firstly the separation of sucrose‚ then the separation of Aspirin and the isolation of the unknown component. 1. Separation
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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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Health and Human Services. (n.d.). Retrieved from http://www.accessdata.fda.gov/drugsatfda_docs/label/2006/017463s104lbl.pdff‚ 2006 afely/UnderstandingOverthecounterMedicines/SafeDailyUseofAspirin/ucm291433.html‚ 2012. USDH published facts about Aspirin‚ including common and major side effects‚ the benefits of taking the drug‚ including heart health‚ and dosage information. Medline plus. (n.d.). Retrieved from http://www.nlm.nih.gov/medlineplus/druginfo/meds/a681004.html‚ 2012
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price‚ $1.69 trade cost)‚ leveraging Bristol-Myers’ brand name‚ and positioning Datril as an analgesic with similar relief effects to the those of the already successful‚ aspirin-based Bufferin and Excedin‚ but more gentle on the stomach‚ and without the side effects of aspirin. By doing so‚ Datril will primarily target aspirin users‚ specifically those from Bufferin’s and Excedin’s current consumer base‚ who suffer from upset stomach. I explain my rationale below. According to the case‚ when Datril
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