We are asked what is the mole fraction of oxygen gas in air.
O2 is 21% and N2 79% by mass in air.
Assume 100 g air.
There will be 21 g O2 and 79g N2.
Calculate moles each:
What is the mole fraction of oxygen gas in air (see table 5.3 in the textbook)?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Partial Pressure concept. You can view video lessons to learn Partial Pressure. Or if you need more Partial Pressure practice, you can also practice Partial Pressure practice problems.