You are watching: What is the mass, in grams, of 1.70×1021 molecules of aspirin, c9h8o4?
Avogadro’s number is a mathematics number that determines the variety of atoms or molecule in one mole that the substance. The value of Avogadro’s number is
The moles of aspirin deserve to be calculate by the following formula.s
Rearrange equation (1) for the fixed of aspirin.
The molar fixed of aspirin
Substitute 12.01 g for the atomic mass the C, 1.008 g for the atom mass of H and also 15.99 g because that the atom mass of O in equation (3).
Substitute 0.002823 mol for the moles of aspirin and also 180.114 g/mol because that the molar fixed of aspirin in equation (2).
Therefore the massive of aspirin is 0.508 g.
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Grade: senior School
Chapter: Mole concept
Keywords: aspirin, molar mass, atomic mass, C, H, O, C9H8O4, Avogadro’s number, 0.508 g, 15.99 g, 12.01 g, 1.008 g.