Question

Calculate the number of molecules of sulphur (S₈) present in 16 g of solid sulphur.

Answer 1

One mole of Sulphur (S) = 8 × 32

= 256 gm.

256 g of solid sulphur = 6.022 × 10²³ molecules.

= \(\frac{6.022\times 10^{23}}{256}\times 16\)

= 3.76 × 10²²

(Approximate)