Question

How many moles of sodium will be there in 1.5 x 10²⁰ atoms of sodium?

Answer 1

Dear Student,

The computation is expressed below,

$$\begin{gathered} MolesofNa=\frac{\#Naatoms}{Avogadrosnumber}=\frac{1.5\times {10}^{20}atoms}{6.022\times {10}^{23}{\displaystyle \raisebox{1ex}{$atoms$}\!\left/ \!\raisebox{-1ex}{$moles$}\right.}} \\ MolesofNa=0.000249moles \end{gathered}$$

Regards.