Aspirin - Aspirin Section 2731/2712 Chemistry 002 Ruili...

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Aspirin Feb 13, 2008 Section 2731/2712 Chemistry 002 Ruili Nick Hookham Purpose -
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The purpose of this lab was to synthesize and analyze a compound made from simple and readily available materials. As well as during the analysis to determine the purity of the compound. Procedure - First, weigh about 2g of Salicylic acid and add 4mL of acetic anhydride and 5 drops of sulfuric acid. Place test tube containing mixture into a hot water bath. After reaction is complete, remove test tube and pour contents into a water and ice mixture. Filter out the precipitate using an aspirator with filter paper. Then test the product against pure aspirin and pure salicylic acid using FeCl 3 . Then titrate your NaOH sample to determine its molarity. Data 2.086 g Salicylic Acid Mass Beaker 27.058g Beaker +product 28.717g Mass procuct 1.659g KHP NaOH M NaOH .55g 25.0mL .108M .294g 13.08mL .11M .327g 14.0mL .11M Molar mass KHP 204.24g/mol Preliminary testing of aspirin with FeCl 3 Salicylic Acid-dark purple Product-purple and amber mix Pure Aspirin-purple and amber mix
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% aspirin
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