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14 June, 15:54

How many total atoms are in. 900 of P2O5

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  1. 14 June, 15:57
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    Given:

    0.920 g of P2O5

    Required:

    Total atoms

    Solution:

    The molar mass of P2O5 is 284 grams per mole.

    0.920 grams / 284 grams per mole of P2O5 = 3.24 x 10^-3 mole

    P2O5

    Using Avogadro's law where 1 mole of substance equals

    6.023 x 10^23 atoms

    3.24 x 10^-3 mole P2O5 (6.023 x 10^23 atoms/mole) = 1.95

    x 10^21 atoms P2O5

    Hopefully this is correct
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