AP Chem Topics 3.1 - 3.6

The force of attraction between nonpolar molecules:

• Hydrogen Bonding
• Dipole - Dipole Forces
• LDF
• Ionic Forces

Which type of IMF is pictured above?

• Dipole-Dipole Interaction

• Ion-Dipole Interaction

• Hydrogen Bonds

• Covalent Bond

• Ionic Bond

Which type of IMF is pictured above?

• Dipole-Dipole Interaction

• Ion-Dipole Interaction

• Hydrogen Bonds

• Covalent Bond

• Ionic Bond

Which type of IMF is pictured above?

• Dipole-Dipole Interaction

• Ion-Dipole Interaction

• Hydrogen Bonds

• Covalent Bond

• Ionic Bond

Nitrogen gas is collected over water. The sample has a total pressure of 1 atm and a student determines that the vapor pressure of water at STP is 0.104 atm. He knows he collected 1 mole of Nitrogen gas, what volume of Nitrogen gas did he collect?

• 4 L

• 25 L

• 0.05 L

• 4.36 L

A sample of HS gas exerts a pressure of 10 atm. What is its density at STP?

• 0.45 g/L

• 15 g/L

• 0.067 g/L

• 2.4 g/L

3.6 g of a gas occupies a volume of 22.4. L at a temperature of 0^oC. If it exerts a pressure of 0.1, which is the most likely identity of this gas?

• H₄S

• H₂O

• N₂

• O₂

Three gases, Ar, N2 and H2 are mixed in a 500L container. Ar has a pressure of 250 torr, N2 has a pressure of 228torr and H2 has pressure of 750torr. What is the total pressure in the container?

• 483torr

• 270torr

• 1228torr

In a mixture of H₂O and H_2, calculate the partial pressure of H₂ at 20^oC when the vapor pressure of water is 17.5torr. The total pressure of the gases is 750torr.

• 767.5torr

• 732torr

• 42.86torr

Which container will have a lower pressure?

• left
• right
• they both have the same pressure
• I don't know