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Concentrated oxygen can be used medically for treating conditions such as COPD and cystic fibrosis. Portable oxygen concentrators can be used enhance the oxygen concentration of regular air. Assume the atmosphere consists of 78.1% nitrogen, 20.9% oxygen, 0.95% argon, and 0.05% carbon dioxide. a) Compute the molar mass for this gaseous mixture. b) How much air (in g) is required to generate 10 L of enriched air at 1 atm and 21 °C using a generator that creates a concentration of 94% oxygen? Hint: part of this problem will require you to determine moles of regular air needed based on oxygen enriched air given and convert moles of regular air to grams using the molar mass in part (a).

Concentrated oxygen can be used medically for treating conditions such as COPD and cystic fibrosis. Portable oxygen concentrators can be used enhance the oxygen concentration of regular air. Assume the atmosphere consists of 78.1% nitrogen, 20.9% oxygen, 0.95% argon, and 0.05% carbon dioxide. a) Compute the molar mass for this gaseous mixture. b) How much air (in g) is required to generate 10 L of enriched air at 1 atm and 21 °C using a generator that creates a concentration of 94% oxygen? Hint: part of this problem will require you to determine moles of regular air needed based on oxygen enriched air given and convert moles of regular air to grams using the molar mass in part (a).

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Concentrated oxygen can be used medically for treating conditions such as COPD and cystic fibrosis. Portable oxygen concentrators can be used enhance the oxygen concentration of regular air. Assume the atmosphere consists of 78.1% nitrogen, 20.9% oxygen, 0.95% argon, and 0.05% carbon dioxide. a) Compute the molar mass for this gaseous mixture. b) How much air (in g) is required to generate 10 L of enriched air at 1 atm and 21 °C using a generator that creates a concentration of 94% oxygen? Hint: part of this problem will require you to determine moles of regular air needed based on oxygen enriched air given and convert moles of regular air to grams using the molar mass in part (a).
Transcribed Image Text:Concentrated oxygen can be used medically for treating conditions such as COPD and cystic fibrosis. Portable oxygen concentrators can be used enhance the oxygen concentration of regular air. Assume the atmosphere consists of 78.1% nitrogen, 20.9% oxygen, 0.95% argon, and 0.05% carbon dioxide. a) Compute the molar mass for this gaseous mixture. b) How much air (in g) is required to generate 10 L of enriched air at 1 atm and 21 °C using a generator that creates a concentration of 94% oxygen? Hint: part of this problem will require you to determine moles of regular air needed based on oxygen enriched air given and convert moles of regular air to grams using the molar mass in part (a).
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