Chemistry - Mole Concept Question with Solution | TestHub

$\because \mathrm{n}=\frac{(\mathrm{actual} \mathrm{mass}) }{(\mathrm{molar} \mathrm{mass})}$

(a) $\mathrm{n}=\frac{\mathrm{w}}{\mathrm{m}}=\frac{8}{16}=\frac{1}{2} \mathrm{mole}$ 

(b) $\mathrm{n}=\frac{16}{32}=\frac{1}{2} \mathrm{mole}$ 

(c) $\mathrm{n}=\frac{14}{28}=\frac{1}{2} \mathrm{mole}$

(d) Thus, all have the same number of moles.