# What is the mass of 8 moles of sodium (Na) atoms?

Well, the mass of $1$ $m o l$ of sodium metal is $22.99 \cdot g$ so you tell us.
And $8 \cdot m o l \times 22.99 \cdot g \cdot m o {l}^{-} 1$ $=$ ??g. How many individual sodium atoms are there in such a quantity?