Question

Calculate volume of carbon dioxide produced on heating $10g$ of limestone at S.T.P?

• A. 3.24 L
• B. 22.4 L
• C. 2.24 L
• D. 0.224 L

Answer 1

The correct option is C 2.24 L

$CaC{O}_3⟶CaO+C{O}_2$

1 mole of limestone gives 1 mole of carbon dioxide, i.e.

Amount of $C{O}_2$ given by 100 g of $CaC{O}_3=22.4L$

Amount of $C{O}_2$ given by 10 g of $CaC{O}_3=\frac{22.4}{100}\times 10=2.24L$

Hence, the correct answer is 2.24 L.