Question

A) Draw the structure of aspirin. Circle and identify three functional groups in the molecule. b)...

A) Draw the structure of aspirin. Circle and identify three functional groups in the molecule.

b) can one get relief from expired aspirin? Why or why not?

c) buffering is aspirin mixed with magnesium carbonate. What is the purpose of magnesium carbonate in the formation?
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Answer #1

b)

It smells like vinegar because it has decomposed into salicylic acid and acetic acid. Acetic acid is essentially vinegar. It will still work as an analgesic (pain reliever) but it will no longer have an effect on platelet aggregation - blood clotting. Aspirin will normally (when not expired) help "thin" the blood - an important role when someone is having a heart attack. If you give someone an expired aspirin that is having a heart attack, it will not help to save thier life. Also, since the tablet is now more acidic from decomposition, it can (and most likely will) cause stomach upset.

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