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Tommy Schneider
Chemistry
7 April, 23:20
How many total atoms are in 0.920 g of P2O5?
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Kaufman
7 April, 23:49
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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
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