Question

When $5.00g$ of a metal is strongly heated, $9.44g$ of its oxide is obtained. The equivalent mass of the metal is :

• A. $2.22g$
• B. $5.00g$
• C. $9.00g$
• D. $4.44g$

Answer 1

The correct option is C $9.00g$

The mass of oxygen present in metal oxide $=9.44-5=4.44$ g.
Equivalent weight of metal is equal to the mass of metal that combines with $8g$ of oxygen.
Thus, the equivalent weight of metal $=\frac{5}{4.44}\times 8=9.00$.