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Pressure of Oxygen Mixtures

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How can i find the pressure of oxygen if it's in a mixture of .40 moles of oxygen and .20 moles of nitrogen at 1.2 atm pressure

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https://brainmass.com/chemistry/general-chemistry/pressure-oxygen-mixtures-39378

Solution Summary

The pressure of oxygen in a mixture is determined. Atmospheric pressure is computed.

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See Also This Related BrainMass Solution

Total Pressure of the Helium and Oxygen Mixture

Mixtures of helium and oxygen are used in scuba diving. What is the total pressure of a mixture of 1.96 g He and 6.08 g O2 confined in a 5-L tank at 25 C?

A. 0.279 atm
B. 4.26 atm
C. 39.3 atm
D. 16.6 atm
E. 3.33 atm

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