How many atoms of cobalt are in 8.98 moles of cobalt?

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How many atoms of cobalt are in 8.98 moles of cobalt?

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Answer 1 · 2016-09-09T07:47:21

$8.98xxN_A$ $"cobalt atoms"$

Explanation:

$N_A, "Avogadro's number"$ specifies $6.0221xx10^23$ individual particles. It is simply another collective number like a dozen, or a score, or a gross. $N_A$ has the property that $6.0221xx10^23$ individual cobalt atoms has a mass of $58.93*g$ . How did I know that? Did I have it memorized?

So the quantity is $approx$ $54xx10^23$ cobalt atoms.

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How many atoms of cobalt are in 8.98 moles of cobalt?

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