Question

how many mols are in 5.0 X 10^ atoms of iron

Answer 1

Hint: Look up Avogadro's number

Answer 2

Hint:\[Number~of~moles=\frac{ Number~of~atoms~of~iron }{ Avogadro~constant }\]

Answer 3

\[number of particles(molecules/atoms/ions)=n L\] by change of subject n(mols)=\[\frac{ number of particles }{ L=6.02E23 }\]