The concentration of salt in water is measured with a salinometer or by the chemical determination of chlorine or sodium.
there is no salt concentration.
The concentration of the compound in the solution is measured in nanomolar units.
Each enzyme has an optimal salt concentration. Changes in the salt concentration may also denature enzymes.
Osmosis of water from a low concentration of salt to a high concentration
Salt does not boil away at approx. 100 Celsius. The water evaporates causing the concentration of salt to increase.
depends on the concentration of salt. The higher the concentration of salt the more likely you are to float.
The same
Water with a salt concentration of about 3.5% is typically found in seawater.
The concentration of the compound is measured in nanomolar units.
The concentration of the solution is measured in millimolar units.
No, the concentration of salt remains the same even if water evaporates. However, the amount of water decreases, causing the remaining water to have a higher concentration of salt.
Tricky question. Are you talking about the concentration of salt in the water or the concentration of water in the salt? It is unusual to talk about the concentration of water unless it is dissolved in another solvent like alcohol. Pure water has a constant concentration of 55.6 mol/dm3. Water is more concentrated without salt in it.