How many moles of oxygen atoms are in 1.2 x 10^25 molecules of diphosphorous pentoxide

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How many moles of oxygen atoms are in 1.2 x 10^25 molecules of diphosphorous pentoxide

[From: ] [author: ] [Date: 11-08-18] [Hit: ]

I hope to have answered your question........

Hi Kevin,

I am french (Boulogne sur mer 62200 - FRANCE)

Avogadro's number : NA = 6,02•10^23 mole^-1

n(P2O5) = N(P2O5) / NA
n(P2O5) = 1.2•10^25 / 6,02•10^23
n(P2O5) = 19,93 mole of P2O5

. . . according the formula :

1 mole of P2O5 contains 5 moles of oxygen atoms

. . . then :

19,93 mole of P2O5 contains 5 x 19,93 = 99,67 moles of oxygen atoms

I hope to have answered your question.
.

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