Question

when a small amount of common salt is added to water taken in a graduated cylinder,there is no detectable change in the level of water.Explain why is it so?

Answer 1

If we add water to salt , water molecules are far away from each other and salt dissolve and enter into the spaces between the water molecules that's why there is no change in the water level

hope this helps you.....

Answer 2

ANSWER:

When Sodium Chloride is added to water, the hydrated ions get into the spaces between the water molecules and increase the volume to a very minimal extent, negligible.

EXPLANATION:

• Common Salt is nothing but NaCl, Sodium Chloride. The bonds between the molecules get very close to each other.
• The increase in density of the solvent near the ions is 'offset' by the decrease in 'bulk density' in the solvent. That is the reason for the undetectable change in the level of water.