D.
Good grief
8. If you were given 300g of Fe2O3 and were asked to calculate the number of molecules in the sample, what would be the correct order of calculations you would complete?
A. start with grams and divide by Avogadro's number then divide by molar mass
C. multiply by Avogadro's number and multiply atomic masses together
D. convert grams to moles by dividing by the molar mass, then multiply by Avogadro's number
2 answers
I think Heyo is confused with his answer.
moles Fe = grams/molar mass = 300/159.7 = ?
Then ? moles x 6.02E23 molecules/mole = ? so anonymous is right on.
moles Fe = grams/molar mass = 300/159.7 = ?
Then ? moles x 6.02E23 molecules/mole = ? so anonymous is right on.
4 answers