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Debora [2.8K]
2 years ago
10

How many moles of argon, Ar, are in 1.31×1024 Ar atoms?

Chemistry
1 answer:
ddd [48]2 years ago
5 0

Answer:

2.18 mol Ar.

Explanation:

Hello there!

In this case, according to the definition of mole as the amount of particles of a given substance, it is possible to introduce the Avogadro's number to assert that 1 mole of any element contains 6.022x10²³ atoms; thus, the moles of Ar in the given amount of atoms turns out to be:

1.31x10^{24}Ar atoms*\frac{1molAr}{6.022x10^{23}atoms}\\\\=2.18molAr

Best regards!

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