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24 January, 16:57

How many total atoms are in 0.450 grams of P2O5

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  1. 24 January, 17:22
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    First, we need to figure out the molar mass of P2O5.

    P x 2: 30.97g x 2 = 61.94g

    O x 5: 16.00g x 5 = 80.00g

    + 141.94g

    0.450g x 1 mole/141.94g = 0.00317 moles = 3.17 x 10^3 moles

    Now we are going to use Avogadro's number (=6.02 x 10^23)

    (3.17 x 10^3 moles) x (6.02 x 10^23 atoms) / (1 mole) = 1.91 x 10^27 atoms
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