Chemistry
Grade-9
Easy
Question
How much amount CO2 is produced when 56gm of calcium carbonate is reacted with HCl?
- 26.4 gm
- 24.64 gm
- 25 gm
- 30 gm
Hint:
1 mole calcium carbonate reacts with 2 moles of HCl to give one mole carbon dioxide.
The correct answer is: 24.64 gm
CaCO3 + 2HCl 
CaCl2 + CO2 + H2O
1 mole calcium carbonate reacts with 2 moles of HCl to give one mole carbon dioxide.
100g of calcium carbonate reacts with HCl to give 44g of carbon dioxide.
Hence, 24.64g CO2 is produced when 56gm of calcium carbonate is reacted with HCl.
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