Why does salt have a melting point 800c, but it dissolves in water so easily
In: Chemistry
Melting point is the temperature at which that pure substance is a liquid.
In the case of table salt (sodium chloride), that’s the temperature at which the bonds between sodium and chloride ions break down (ions = an atom or molecule with a positive or negative charge because the number of electrons is different to the number of protons. Can go into this and the structure of salt if you haven’t come across it).
Water dissolves table salt because water molecules take the place of sodium and chloride ions. The ions are happy enough to form bonds with the water instead of each other, and the water remains a liquid, with sodium and chloride ions dispersed in it.
Latest Answers