Lesson 3.1-3.8 Review Problems

Which statement explains why Br₂ is a liquid at STP and I₂ is a solid at STP?

• Molecules of Br₂ are polar, and molecules of I₂ are nonpolar

• Molecules of Br₂ have stronger intermolecular forces than molecules of I₂.

• Molecules of Br₂ are nonpolar, and molecules of I₂ are polar

• Molecules of I₂ have stronger intermolecular forces than molecules of Br₂.

Which of these typically increases when intermolecular forces increase?

• Boiling Point

• Melting Point

• Viscosity

• All of these

A substance capable of hydrogen bonding has a ___________ boiling point than a similar substance that doesn't hydrogen bond.

• higher

• lower

Which of these typically decreases when IMF's increase?

• Boiling Point

• Melting Point

• Vapor Pressure

• All of these

The strength of temporary dipoles:

• increases with the size of the molecules.

• is greater than intermolecular forces.

• is the strongest intermolecular force.

The force of attraction between nonpolar molecules are which of the following:

• Hydrogen Bonding

• London Dispersion Forces

• Dipole-Dipole Forces

• Ionic Forces

Which type of IMF is responsible for the attraction pictured above?

• Dipole-Dipole Interactions

• Hydrogen Bonds

• Ion-Dipole Interactions

• Covalent Bonding

Which type of IMF is responsible for the attraction pictured above?

• Ion-Dipole Interactions

• Covalent Bonding

• Hydrogen Bonding

• Dipole-Dipole Interactions

Which of the following will NOT have hydrogen bonding?

• 
• 
• 
• 

Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 7.18 L

• 7.81 L

• 4.63 L

• 4.36 L