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

1 Answer
Jan 25, 2018

Answer:

#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"#