Sphere of hydration

Definition

A sphere of hydration is the cluster of water molecules that surround and interact with a solute ion or molecule. This interaction helps to stabilize the solute in an aqueous solution.

5 Must Know Facts For Your Next Test

1. Water's polarity allows it to form spheres of hydration around ions and polar molecules.
2. Spheres of hydration are essential for dissolving salts like NaCl in water.
3. The hydrogen bonds between water molecules and solutes prevent the solutes from re-associating.
4. Hydration shells can influence biochemical reactions by stabilizing charged particles.
5. These spheres are crucial for maintaining cellular homeostasis by enabling nutrient transport.

Review Questions

Related terms

Polarity:

The distribution of electrical charge over the atoms joined by the bond.

Hydrogen Bonding: A weak bond between two molecules resulting from an electrostatic attraction.

Solvent: A substance, typically liquid, that dissolves a solute, resulting in a solution.