How many moles of c9h8o4 are in a 0.300 g tablet of aspirin?

Question

Roland Patterson

Chemistry

17 April, 00:19

How many moles of c9h8o4 are in a 0.300 g tablet of aspirin?

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Troy Leonard · Answer 1

1.67 x 10^-3 moles Calculate the molar mass of C9H8O4 Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 C9H8O4 = 9 * 12.0107 + 8 * 1.00794 + 4 * 15.999 = 180.1558 Now divide the mass you have by the molar mass 0.300 g / 180.1558 g/mole = 1.665225 x 10^-3 Round to 3 significant figures 1.67 x 10^-3