Question

A certain charge liberates 0.8 gm of $O_{2}$. The same charge will liberate how many gm of silver

• A. 108 gm
• B. 10.8 gm
• C. 0.8 gm
• D. $\frac{108}{0.8}gm$

Answer 1

Answer: (B)

10.8 gm

Answer 2

$\frac{\text{Mass of }O_{2}\text{ ions}}{\text{Mass of }Ag\text{ ions}} = \frac{\text{Chemical equivalent of }O_{2}}{\text{Chemical equivalent of }Ag}$

⇒ $\frac{0.8}{m} = \frac{8}{108}$ ⇒ $m = 10.8gm$