5.81 Healthy Air for Sailors The CO2 that builds up in the air of a submerged submarine can be removed by reacting it with sodium peroxide: 2Na,O2(s) + 2CO2(g) → 2Na2C0;(s) + O2(g) If a sailor exhales 150.0 mL of CO2 per minute at 20 °C and 1.02 atm, how much sodium peroxide is needed per sailor in a 24-hr period?

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Chapter5: Gases
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5.81 Healthy Air for Sailors The CO2 that builds up in the air of a submerged submarine can
be removed by reacting it with sodium peroxide:
2Na,O2(s) + 2CO2(g)
2Na2CO3(s) + O2(g)
If a sailor exhales 150.0 mL of CO2 per minute at 20 °C and 1.02 atm, how much sodium
peroxide is needed per sailor in a 24-hr period?
5.89 A 150.0 mL flask contains 0.391 g of a volatile oxide of sulfur. The pressure in the flask
is 750 torr, and the temperature is 22 °C. Is the gas SO2 or SO3?
5.99 What pressure is exerted by a gas mixture containing 2.00 g of H2 and 7.00 g of N2 at
273 °C in a 10.0 L container? What is the contribution of N2 to the total pressure?
Transcribed Image Text:5.81 Healthy Air for Sailors The CO2 that builds up in the air of a submerged submarine can be removed by reacting it with sodium peroxide: 2Na,O2(s) + 2CO2(g) 2Na2CO3(s) + O2(g) If a sailor exhales 150.0 mL of CO2 per minute at 20 °C and 1.02 atm, how much sodium peroxide is needed per sailor in a 24-hr period? 5.89 A 150.0 mL flask contains 0.391 g of a volatile oxide of sulfur. The pressure in the flask is 750 torr, and the temperature is 22 °C. Is the gas SO2 or SO3? 5.99 What pressure is exerted by a gas mixture containing 2.00 g of H2 and 7.00 g of N2 at 273 °C in a 10.0 L container? What is the contribution of N2 to the total pressure?
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