CH-930
The mole
Chemistry · Secondary 3 · Hard · The mole
A gas syringe is used to measure the volume of carbon dioxide produced when excess hydrochloric acid reacts with 2.50 g of calcium carbonate. The reaction is
CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O.
What is the maximum volume of CO₂ produced at room temperature and pressure (1 mol of gas occupies 24 dm³)?
[Ar: Ca = 40, C = 12, O = 16]
CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O.
What is the maximum volume of CO₂ produced at room temperature and pressure (1 mol of gas occupies 24 dm³)?
[Ar: Ca = 40, C = 12, O = 16]
- 0.24 dm³
- 0.60 dm³
- 2.40 dm³
- 6.00 dm³
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