Question

How many moles of nitrogen are contained in 1.61 x 10(24th power) atoms of nitrogen

Answer 1

\[1.61\times10^{24}\text{Nitrogen Atoms} \cdot\frac{1mole}{6.02\times10^{23}\text{Atoms}} = 2.67\text{ moles} \]You can use avogadro's number as a conversion anytime you need to go from atoms/molecules/ions/particles to moles or vice versa.