Question

How many atoms of zinc are in 1.00 g

Answer 1

Moles of zinc $=\frac{1.00}{65.38}=0.0153moles$

One mole of zinc has $6.022\times 10^{23}atoms$

Atoms of zinc in 1.00g $=0.0153\times 6.022\times 10^{23}=9.21366\times 10^{21}atoms$