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March 27, 2017

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Acetylsalicylic acid (C9H8O4) is a monoprotic acid commonly known as "aspirin." A typical aspirin tablet, however, contains only a small amount of the acid. In an experiment to determine its composition, an aspirin tablet was crushed and dissolved in water. It took 12.25 mL of 0.1466 M NaOH to neutralize the solution. Calculate the number of grains of aspirin in the tablet. (One grain = 0.0648 g.)

  • Chemistry - ,

    mols NaOH = M x L = ?
    mols aspirin = mols NaOH
    grams aspirin = mols aspirin x molar mass aspirin

    Then use the conversion factor to convert to grains. It should be close to 5 grains

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