Question

Ionic compounds are soluble in water. Explain.

Answer 1

Part 1: Polar Molecule:

1. The molecule formed as a result of a significant electronegative difference between the atoms of the molecule.
2. This difference in electronegativity creates a partial charge on the atoms, making them polar. e.g. ${\mathrm{H}}_2\mathrm{O}$
3. Polar molecules possess a strong force of attraction.

Part 2: Solubility of Ionic Compounds in water.

Water is a polar solvent.

1. Polar Solvent $\left({\mathrm{H}}_2\mathrm{O}\right)$ dissociates the ionic compound by interacting with the charged ions and pulls them with a strong force of attraction. As a result, the electrostatic force between the ionic compounds decreases and thus makes them soluble in water.