Problem: Part AWhat is the mole fraction of oxygen gas in air (see table 5.3 in the textbook)? Part BWhat volume of air contains 12.1 g of oxygen gas at 273 K and 1.00 atm? Express your answer using two significant figures. 

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Part A

What is the mole fraction of oxygen gas in air (see table 5.3 in the textbook)? 

Part B

What volume of air contains 12.1 g of oxygen gas at 273 K and 1.00 atm? 

Express your answer using two significant figures. 

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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 Ideal Gas Law Molar Mass concept. If you need more Ideal Gas Law Molar Mass practice, you can also practice Ideal Gas Law Molar Mass practice problems.

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Based on our data, we think this problem is relevant for Professor Ow's class at UCLA.