Question

Compare a crystal lattice with a molecule. What does the formula unit AI(OH)3 tell you about compound aluminum hydroxide

Answer 1

Aluminum hydroxide is a common compound of aluminum, hydrogen, and oxygen which can be considered a base with the formula Al(OH)3. All polymorphs of this compound are composed of layers of octahedral aluminium hydroxide units with the aluminium atom in the centre and the hydroxyl groups on the sides, with hydrogen bonds holding the layers together.

Answer 2

Be sure to include these points:

A crystal lattice is a solid in which the particles are arranged in a regular, repeating pattern.

A molecule is a discrete unit of atoms that is bonded together.

Many ions come together to form a crystal.

The formula unit of an ionic compound represents the smallest ratio of ions in the crystal.

The lattice of aluminum hydroxide has three OH- ions for every Al3+ ion.