What happens to the density of distilled water when you add salt to it?

Answer 1

When you add table salt (sodium chloride, NaCl) to water, the salt dissolves into ions, Na+ and Cl-. The volume increases by a small factor, but the mass increases by a bigger factor. There are two reasons. One is simply that the NaCl is much denser than water to begin with, mainly because its ions have more mass than the oxygen and hydrogen atoms in the water molecules. Also, the ions bind nicely with the water molecules, so that the volume of the saltwater isn't as big as the water volume plus the salt volume.

Answer 2

The density increases. Ionic substances like salt dissolve easily in water, and the increase in volume of the water is less than the total volume of salt and water separately, thus the density increases.

An example of this is the Dead Sea. It has such a high salt concentration (40% salt) that people can easily float on it without swimming.

Answer 3

The specific gravity of the water goes up. Specific gravity is a measure of density used for liquids.

Answer 4

As the water boils away the salt is distributed throughout a smaller amount of water. what remains in the pot will have a higher salt content and therefore a higher density.

Answer 5

salt increases the density of water. pure water density: 1000 kg/m3 salt water density: 1027 kg/m3 (at sea surface)

Answer 6

It would add more mass to the water mixture than it would change its volume, so the solution would become denser as you add salt.

Answer 7

by 20percent i think

Answer 8

The density increases with salinity.