U3 - Part A

Which is the weakest IMF?

• London Dispersion Forces

• Dipole - Dipole

• Hydrogen Bonding

All molecules contain what type of IMF?

• London Dispersion

• Dipole-Dipole

• Hydrogen Bonding

CH₄ and C₄H₁₀ are both nonpolar molecules. However, C₄H₁₀ has a higher boiling and STRONGER London Dispersion Forces because

• greater molar mass

• more H's

• greater electron cloud and more polarizable

• stronger ionic charges

The higher the boiling the __________ the intermolecular forces

• stronger

• weaker

Which of the following is held together by hydrogen bonding?

• HBr

• CH₄

• NP₃

• NH₃