Chemistry - Mole Concept Question with Solution | TestHub

$74.75\%$ of chlorine means $74.75\mathrm{g}$ chlorine is present in $100\mathrm{g}$ of metal chloride. Weight of metal $=100\mathrm{g}-74.75\mathrm{g}$ $=25.25\mathrm{g}$ Equivalent weight $$\begin{array}{rl}& =\frac{\text{ weight of metal }}{\text{ weight of chlorine }}\times 35.5\\ & =\frac{25.25}{74.75}\times 35.5=12\end{array}$$ Valency of metal $$\begin{array}{r}=\frac{2\times \text{ V.D. }}{\text{ Equivalent wt. of metal }+35.5}\\ =\frac{2\times 94.8}{12+35.5}=4\end{array}$$ $\therefore$ Formula of compound $={\mathrm{MCl}}_4$