Tuesday, February 11, 2014

The aim of the experiment is to determine the percentage of aspirin in different commercial preparations (Aspirin & Magnyl) and to find out which is the best value for money.

Report: Analysis of aspirin Tablets. Aim: The aim of the experiment is to determine the ploughshare of aspirin in different mercantile preparations ( acetylsalicylic acid & deoxyadenosine monophosphate; Magnyl) and to see out which is the best value for money. Hypothesis: Aspirin is a monoprotic (monobasic) erosive and on that pointfore, reacts with sodium hydroxide closure gibe to the equation: CH3-COO-C6H4-COOH + NaOH à CH3-COO-C6H4-COONa + H2O : *Aspirin and Magnyl inking pads. *NaOH *Phenolphthalein *95 % ethanol *digital scale *Conical flaskful *Graduated cylinder *Beaker * squeeze *Magnate stirrer *Funnel *Pipette *Burette * mold & Mortar Procedure: *Aspirin 500mg, 20 tablets for 27.15 DKK. all(prenominal) tablet for 1.35 DKK. *Magnyl 500mg, 20 tablets for 1)Weigh out accurately one Aspirin or Magnyl tablet. 2)Grind the tablet and put it into a 50cm3 conic flask and dissolve it in 10cm3 of 95% ethanol. 3)Titrate this solution with 0.1 mol dm-3 s odium hydroxide solution. 4)Use two drops of phenolphthalein solution as indicator. 5)Keep titrating the solution until you apprehend a change in colour. As you see a light purple in your solution, mark off titrating and evidence the burette. Setup: 1.I accurately weighed the mass of an Aspirin tablet on a digital scale. m (Aspirin tablet, 500mg) = 0.60g *500mg is the mass of alive(p) ingredients in a single aspirin tablet. 2.I grinded the tablet with a pestle and mortar. In order to get sure that there is no aspirin left inside the mortar subsequently grinding, I poured virtually drops of ethanol and stirred well and poured it into the conical flask. 3.I measured 10cm3 of 95% ethanol in a burette. and then I poured the mentioned issue forth of ethanol into the conical flask and dissolved the grinded tablet with... If you urgency to get a expert essay, order it on our website: BestEssayC heap.com

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