Question

The volume (in litres) of 16 $gm$ of $S{O}_2$ formed at $STP$ is:

• A. 5.6 $L$
• B. 8.0 $L$
• C. 11.2 $L$
• D. 16.0 $L$

Answer 1

Answer: (A)

5.6 $L$

The molecular weight of sulfur dioxide is 64 $g/mol$. Therefore, 16 grams of sulfur dioxide corresponds to 0.25 mole.

One mole of any gas at $STP$ occupies 22.4 $L$.

Thus 0.25 mole of sulfur dioxide will occupy 5.6 $L$ $(22.4\times 0.25)$ at $STP$.