measure the conductivity, pure water is just h2o, which is good insulator. with the present of sodium, it can carry electron and we can measure the current pass through.
Salts may be soluble or insoluble in water.
When water evaporates, salts dissolved in the water are left behind and form solid crystals.
salinity
Salinity
pH is a measure of the acidity. concentration of salts would be molarity.
Polar salts are easily dissolved in water.
This measure is the concentration of NaCl expressed in mol/L, g/L, g/100 g (percentage).
Chinga tu madre
Dissolved salts have an influence on the physical, chemical and biological properties of the solution.
Salinity
Ionic salts are dissociated in ions.
This measure is called concentration, expressed in g/L.