AP Chemistry Unit 3 Review

Front

What type of intermolecular force is present in HCl?

Back

Dipole-dipole interactions.

Front

What explains the very high melting and boiling point of water?

Back

Strong hydrogen bonds between water molecules.

Front

How do you calculate the energy of a photon given its frequency?

Back

Use the formula E = hv, where E is energy, h is Planck's constant (6.626 x 10^-34 J·s), and v is frequency.

Front

What type of bonding is present in ethane (C2H6)?

Back

Nonpolar covalent bonding.

Front

At what state does water exist at 700 mmHg and 50 °C?

Back

Liquid.

Front

What is the definition of hydrogen bonding?

Back

A strong type of dipole-dipole interaction that occurs between molecules containing hydrogen bonded to highly electronegative atoms like nitrogen, oxygen, or fluorine.

Front

What is the significance of the boiling point in relation to intermolecular forces?

Back

The boiling point is a measure of the strength of intermolecular forces; stronger forces result in higher boiling points.

Front

What is the relationship between frequency and wavelength in electromagnetic radiation?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is the formula for calculating the energy of light?

Back

E = hv, where E is energy, h is Planck's constant, and v is frequency.

Front

What type of intermolecular forces are present in nonpolar molecules?

Back

London dispersion forces.