What are the mole fraction and the mole percent of oxygen in exhaled air if P (subscript of O2) is 116 torr and a P (subscript of total) is 788 torr? I not sure if the question makes sense.
The mole fraction of oxygen in exhaled air is
You were given the total pressure of an air sample and the partial pressure of oxygen, which means that you can solve for the mole fraction of oxygen by using
In your case, you'll get
The mole percent is imply the mole fraction multiplied by 100, so
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