Chemistry Homework Help

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How many molecules are there in a 0.1g tablet of aspirin, C9H8O4? (show work)

Jun 5th, 2015

Thank you for the opportunity to help you with your question!

C9H8O4 has a molar mass of 180 g/mol
convert 100.0 mg to grams and you get 0.1 g

divide the 2 and you end up with mols = 1800 mols

multiply by avogradros number (6.022e23) and you end up with molecules.

1.08396e27 molecules of aspirin in the tablet


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 5th, 2015

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