Answer to Question #149631 in General Chemistry for Ali

Question

1. The volume of a gas-filled balloon is 30.0 L at 40℃ and 153 kPa pressure. What is the volume of the balloon at STP?
2. Air contains oxygen, nitrogen, carbon dioxide, and trace amounts of all other gases. What is the partial pressure of oxygen if the air is at standard pressure? The partial pressure of nitrogen is 0.7807atm, carbon dioxide is 3.948 x 10⁻⁴ atm, and the other gases is 9.277 x 10⁻³ atm.
3. You fill a rigid cylinder that has a volume of 20.0 L with nitrogen gas to a final pressure of 2.00 x 10⁴ kPa at 28℃. How many moles of nitrogen gas does the cylinder contain?

Answer 1

1. 39.5 L

2. 0.2096 atm

3. 160 mole