Chapter 4 Review

Front

What is the solubility of a gas in water at 1.0 atm if it is 4.0 g/L at 2.0 atm?

Back

2.0 g/L

Front

What happens to the pressure inside a closed container when water evaporates?

Back

It increases due to vapor buildup.

Front

Which of the following has only dispersion forces: NH₃, H₂O, CH₄, HF?

Back

CH₄

Front

What causes water to have a high boiling point compared to other small molecules?

Back

Hydrogen bonding.

Front

When can ionic solids conduct electricity?

Back

They can conduct electricity when they are melted or dissolved in water.

Front

Define solubility.

Back

The ability of a substance to dissolve in a solvent at a given temperature and pressure.

Front

What is vapor pressure?

Back

The pressure exerted by a vapor in equilibrium with its liquid or solid form.

Front

Explain the concept of dispersion forces.

Back

Weak intermolecular forces arising from temporary dipoles in molecules.

Front

What is hydrogen bonding?

Back

A strong type of dipole-dipole interaction between molecules that have hydrogen bonded to highly electronegative atoms.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.