Sodium peroxide, $\text{Na}_2\text{O}_2$, is employed to take in carbon dioxide from the air and give out oxygen in enclosed settings such as space capsules and submarines. $2\text{Na}_2\text{O}_2 + 2\text{CO}_2 \rightarrow 2\text{Na}_2\text{CO}_3 + \text{O}_2$ What mass of sodium peroxide would be needed to remove $2.4\,\text{dm}^3$ of carbon dioxide from the atmosphere under room temperature and pressure conditions?
- A$2.4\,\text{g}$
- B$3.9\,\text{g}$
- C$7.8\,\text{g}$
- D$15.6\,\text{g}$