Question

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

Answer 1

`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"`