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At an Underwater depth of 245 ft, the pressure is 8.37 atm. What should the mole

ID: 899860 • Letter: A

Question

At an Underwater depth of 245 ft, the pressure is 8.37 atm.
What should the mole percent of oxygen be in the diving gas for the partial pressure of oxygen in the mixture to be 0.21 atm, the same as in air at 1 atm? At an Underwater depth of 245 ft, the pressure is 8.37 atm.
What should the mole percent of oxygen be in the diving gas for the partial pressure of oxygen in the mixture to be 0.21 atm, the same as in air at 1 atm?
What should the mole percent of oxygen be in the diving gas for the partial pressure of oxygen in the mixture to be 0.21 atm, the same as in air at 1 atm?

Explanation / Answer

partial pressure= mole fraction * total pressure

0.21 = mole fraction * 8.37

mole fraction = 0.21/8.37

     = 0.0251

Answer: 0.0251