A gaseous mixture of O2 and N2 contains 30.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 725 mmHg ? Express you answer numerically in millimeters of mercury. View Available Hint(s) ΑΣφ 502 Poxygen mmHg охуg Previous Answers Submit Incorrect; Try Again; 3 attempts remaining Your answer would be correct if the given percentage was "by moles." Since the given percentage is "by mass," you will have to calculate the moles and the mole fraction. You may want to review Hint 1. How to approach the problem.

Question
A gaseous mixture of O2 and N2 contains 30.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 725 mmHg ?
Express you answer numerically in millimeters of mercury.
View Available Hint(s)
ΑΣφ
502
Poxygen
mmHg
охуg
Previous Answers
Submit
Incorrect; Try Again; 3 attempts remaining
Your answer would be correct if the given percentage was "by moles." Since the given percentage is "by mass," you will have to calculate the moles
and the mole fraction.
You may want to review Hint 1. How to approach the problem.

Image Transcription

A gaseous mixture of O2 and N2 contains 30.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 725 mmHg ? Express you answer numerically in millimeters of mercury. View Available Hint(s) ΑΣφ 502 Poxygen mmHg охуg Previous Answers Submit Incorrect; Try Again; 3 attempts remaining Your answer would be correct if the given percentage was "by moles." Since the given percentage is "by mass," you will have to calculate the moles and the mole fraction. You may want to review Hint 1. How to approach the problem.

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