This is why seawater at Antarctica is very salty. The salt that is rejected forms brine beneath the ice and becomes more and more salty until it becomes so dense that it sinks, displaces less dense seawater that moves to the surface. As ice forms in the sea, the salt cannot form part of the ice crystal so the ice is almost pure water.The salinity of seawater is about 3.5% and it freezes at about -1.9☌.

On the other side its relative vapour density, the density of methanol in vapour form compared to that of air, is 1.11. This means, methanol is less dense than water and would float on top of the water. Freezing water expands over 9 by volume and ice floats on water because it is lighter. The relative density of methanol, which is the density when compared to water which has a density of 1000 g/cm 3, is 0.79. At 4 degrees Celsius pure water has a density of 1g/mL or 1kg/L and a specific gravity of 1. The density of water varies according to temperature and the degree of purity. The addition of salt to water makes a solution that is denser than fresh water – it freezes at a lower temperature. Density of pure water is a constant at a certain temperature not depending on sample.Below is a table of units in which density is commonly expressed, as well as the densities of some common materials. The hydrogen of the water molecule is attracted to chlorine ions and the oxygen to the sodium ions. There are exceptions however, such as waters density increasing between 0☌ and 4☌. These variations of water changes its density because whats in the water has its. This allows the sodium and chlorine ions to be pulled apart by the water molecules. Water has the maximum density of 1 g/cm3 only when it is pure water. The maximum density of water is 0.9998395 g/ml at 39.2° F (4. We know water density can be expressed in different units, such as lb/ft 3 or g/ml, or g/cm 3, but the actual density of water is not 1 g/ml, a bit less than 1. Salt dissolves in water because the attraction between the water molecules and the sodium ions or chlorine ions is stronger than the attraction between the sodium ions and chloride ions in the lattice. Well, you must remember a fact about water density.For every sodium ion you will find one chlorine ion (1:1 ratio).

Salt is made up of many sodium and chlorine ions stacked together in a lattice. Water (H 2O) is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent.

What is the density of pure water