Chemistry - Mole Concept Question with Solution | TestHub

Molecular wt. $=240\mathrm{g}/\mathrm{mol}$

$$\begin{array}{rl}& \mathrm{d}=1.2\mathrm{g}/\mathrm{mL}\\ & \text{ Vol of }1\mathrm{mol}\text{ molecule }=\frac{240}{1.2}\mathrm{mL}\\ & \text{ Vol of }1({\mathrm{N}}_{\mathrm{A}})\text{ molecule }\\ & \text{ Vol of }2{\mathrm{N}}_{\mathrm{A}}\text{ molecule }=\frac{240}{1.2{\mathrm{N}}_{\mathrm{A}}}\times 2{\mathrm{N}}_{\mathrm{A}}\mathrm{mL}=400\mathrm{mL}=0.4\mathrm{L}\end{array}$$