Question

How many chlorine atoms (not molecules) are
present in 2.0 moles of CCl4?

Answer 1

In $1$ mole of $CCl_4$ number of $Cl$ atoms present are $4\times Na$

Hence in $2$ moles of $CCl_4$ number of atoms of $Cl$ are $8\times Na=4.8184\times10^{24}atoms$