Chemistryhard · Past Paper

If 50g of $CaCO_3$ is heated, what volume of $CO_2$ is produced at NTP? (Molar mass of $CaCO_3 = 100g/mol$)

A11.2 liters
B22.4 liters
C44.8 liters
D5.6 liters

✓ Correct Answer: A11.2 liters

100g CaCO3 gives 22.4L of CO2. So, 50g (0.5 mol) gives 11.2L.

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