Chapter 11

Question 1

Water Pollution

Answer 1

Human and animal waste pollute water -> boiling water eliminates contaminants. BUT Chemical contaminants from industrial activities cannot be boiled because they are not alive or volatile.

Safe Drinking Water Act: EPA determines that water providers cannot have more than 100 biological and chemical contaminants

Question 2

What are the 4 types of intermolecular forces?

Answer 2

1.) Dispersion: Movement of Electrons in a Molecule. (Weakest and depends on surface area)

2.)Dipole-Dipole: Polar Molecules have a strong IMF because + & - poles attract

3.) Hydrogen Bond: Hydrogen Bonds with Nitrogen, Oxygen, and Flourine (Strongest)

4.) Ion - Dipole: Ionic bond breaks down and bonds with a covalent molecule (Strong)

Question 3

As Atomic Radius Increases -> ___ Increases

Answer 3

Atomic Radius Increase = Intermolecular Force Increases

Question 4

Predict Vapor Pressure and Boiling Point