Question

When calcium chloride is added to a sample of water, the boiling point will _________.

• A. not change
• B. first decrease, then increase
• C. increase
• D. decrease

Answer 1

Ans- (c) increase

If you add salt to water, its boiling point increases. This is an example of boiling point elevation. The property isn't exclusive to

water. It occurs any time you add a non-volatile solute (such as salt) to a solvent (e.g. water).

Sodium chloride dissociates into sodium and chlorine ions. These charged particles alter the intermolecular forces between

water molecules. In addition to affecting the hydrogen bonding between water molecules, there is an ion-dipole interaction to

consider.