A 2750-ML Sample of O₂ Is Collected Over Water at 60

question 20

Multiple Choice

A 275.0-mL sample of O₂ is collected over water at 60.0°C. The total pressure is 755 torr. What is the volume of the O₂ at the STP? (The vapor pressure of water at 60°C is 149 torr) .

• A) 244.0 mL
• B) 224.0 mL
• C) 180.0 mL
• D) 333.0 mL
• E) none of these

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