Atoms and Molecules — Science STD 9 — Question

Molar mass of $S_8 = 256g\ mol^{-1}$
We know,
$1$ mole of $S_8 =$
Molar mass of $S_8 = 6.022 \times 10^{23}$ molecules.
$256g$ of $S_8 = 6.022 \times 10^{23}$ molecules.
Hence, $16g$ of$ S_{8 }=\frac{6.022\times10^{23\times}16}{256}$ molecules
$= 3.76 \times 1022$ molecules
$= 3.76 \times 10^{22}$ molecules
$= 3.78 \times 10^{23}$ molecules $($approx$)$