How many atoms of carbon are present in "62.0 g" of this element?

1 Answer
Dan S. ยท Stefan V.
Jan 25, 2018

3.11 xx 10^24 atoms.

Explanation:

First, you must convert the grams of carbon to moles of carbon. To do this, you must divide the mass ("62.0 g") by the molecular weight of carbon, which is "12.011 g/mol"..

"62.0 g"/"12.011 g/mol" = "5.16 moles of carbon"

Then, convert moles of carbon to atoms of carbon using Avogadro's constant ( 6.022 xx 10^23 " atoms per mole")

"5.16 moles" xx (6.022 xx 10^23 " atoms")/"1 mole" = 3.11 xx 10^24 " atoms"

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