Chemistry - Mole Concept Question with Solution | TestHub

The minimum $\mathrm{m}$. wt. must contain at least one S atom. $\begin{array}{rl}\therefore \%& \mathrm{S}=\frac{\text{ weight of one }\mathrm{S}-\text{ atom }}{\text{ minimum }\mathrm{m}.\mathrm{wt}}\times 100\\ & 4=\frac{32}{\text{ minimum }\mathrm{m}.\mathrm{wt}.}\times 100\\ & \text{ minimum }\mathrm{m}.\text{ wt. }=\frac{32}{4}\times 100=800\end{array}$