University:
Felician University
Course:
CHEM-001 | Basic Chemistry
Academic year:

2022
Views:

493

Pages:

6
Author:

5CelestialChronicle

- Naming Hydrates Hydrates • Hydrates are solid compounds that contain water molecules (H2O) • When solid ionic compounds crystallize from liquid, they often include water molecules surrounding them Identifying Hydrates • Hydrates are like regular ionic compounds, however contain water molecules at the end • If there are water molecules at the end of an ionic compound separated by a “•”, it is a hydrate CuSO4 • 5H2O Ionic compound Water molecules Naming Hydrates • Naming hydrates involves two steps: 1. Name the ionic compound at the beginning by following regular ionic naming steps 2. Name the water molecules by using the prefixes below (Recall from covalent compound naming) + “hydrate” Ionic compound name + prefix-hydrate Naming Hydrates • The prefixes will go before the word “hydrate” Number of H2O Prefix Combination 1 Mono Monohydrate 2 3 4 Di Tri Tetra Dihydrate Trihydrate Tetrahydrate 5 Penta Pentahydrate 6 Hexa Hexahydrate 7 Hepta Heptahydrate 8 9 Octa Nona Octahydrate Nonahydrate 10 Deca Decahydrate Naming Hydrates Examples: Al2O3 • 3 H2O  Aluminum oxide trihydrate Copper (II) oxide dihydrate  CuO • 2H2O