Aspirin Lab

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The purpose of this lab was to calculate the mass percent of ASA in a tablet of aspirin. After conducting the experiment, the molarities of the each diluted ASA solution were calculated. Then, the slope of the Beer’s Law plot was determined by graphing the DS molarities and absorbances. That slope is then used to calculate the concentration of ASA in the diluted aspirin solutions. From the concentrations, the mass of ASA is then calculated; the average mass being 0.343 g. The average percent of ASA in the tablet is 92.7%. Most of the aspirin tablet consist of ASA. An error that could have came from pipetting the diluted solutions into the flasks. It is very easy to accidentally over pipet the amount needed. Once the solution goes into the volumetric
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