In the reaction of CO2(g) and solid sodium peroxide (Na2O2), solid sodium carbonate (Na2CO3) and oxygen gas are formed. This reaction is used in submarines and space vehicles to remove expired CO2(g) and to generate some of the O2(g) required for breathing. Assume that the volume of gases exchanged in the lungs equals 4.1 L/min, the CO2 content of expired air is 3.1% CO2 by volume, and the gases are at 25°C and 753 mmHg. If the CO2(g) and O2(g) in the above reaction are measured at the same temperature and pressure, (a) how many milliliters of O2(g) are produced per minute and (b) at what rate is the Na2O2(s) consumed, in grams per hour? Answers: (a) 64 mL O2/min, (b) 24 g Na2O2/h