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Chemistry Stoichiometry?

In an experiment to determine the chemical formula of a compound, a chemist fins that 3.46 gram sample of the compound is composed of 0.898 grams of nitrogen. If te compound contains only nitrogen and oxygen, what is the empirical formula?

Possible answers:

NO3

N2O5

N2O3

NO2

Please answer fast!

1 Answer

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  • 2 months ago
    Favorite Answer

    0.898 g of nitrogen, 2.562 g of oxygen.

    That's about 0.16 moles of oxygen ATOMS (atomic weight 16),

    and about 0.064 moles of nitrogen atoms (atomic weight 14).

    Could be N2O5, as 0.160 = 5/2 of 0.064.

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