Question

Weight of $S{O}_2$ that can be made by burning sulphur in 5.0 moles of oxygen is .

• A. 640 grams
• B. 160 grams
• C. 80 grams
• D. 320 grams

Answer 1

The correct option is D 320 grams

$S+O_2\to S{O}_2$
From the above balanced equation we see that,
1 mole of sulphur reacts with 1 mole of $O_2$ to form 1 mole of $S{O}_2$.
So,
Mass of $S{O}_2$ formed from 5 mole = $5\times 64=320g$