What is the volume of CO₂ liberated (in litres) at 1 atmospheric pressure at 0⁰C when 10g of 100% pure Calcium Carbonate is treated with excess sulphuric acid?
Share
What is the volume of CO₂ liberated (in litres) at 1 atmospheric pressure at 0⁰C when 10g of 100% pure Calcium Carbonate is treated with excess sulphuric acid?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
Answer:
Hope this helps you.....
ANSWER
CaCO3⇌CaO+CO2
One mole of calcium carbonate on decomposition gives one mole of carbon dioxide.
The molecular weight of calcium carbonate is 100 g/mol.
10 g calcium carbonate corresponds to 0.1 mol. It on decomposition will give 0.1 mol of carbon dioxide. But limestone is only 90% pure. Hence, 0.09 mol of carbon dioxide will be obtained.
1 mole of carbon dioxide occupies 22.4 L at STP.
Hence, 0.09 mol of carbon dioxide will occupy 0.09×22.4=2.016 L.