Any of a class of chemical reactions, such as the formation of hydrated copper sulfate in aqueous solution, in which solute and solvent molecules combine with relatively weak covalent bonds
a chemical process in which solvent molecules and molecules or ions of the solute combine to form a compound
The process by which solvent molecules surround and interact with solute ions or molecules
occurs at the mouth of the pore During ion permeation, where ion is partially or fully dehydrated and therefore stabilized by interactions with the pore wall
Ions in solution are normally combined with at least one molecule of solvent This phenomenon is termed solvation
Ions in solution are always surrounded by solvent molecules A few of these molecules will be more or less strongly attached to the ion (mainly because of the attraction of the charged ion and the dipole of the solvent molecule) and this assembly may be considered as a single unit for some purposes E g , the solvent molecules will move together with the ion during diffusion and electromigration The number of solvent molecules so attached to an ion is called the solvation number The surface of an electrode also can, and usually is, solvated Since the electrodes usually have some excess charge (see electrical double layer ,) they also attract the solvent dipoles, and the electrode surface is usually covered by a monolayer of strongly oriented solvent molecules The solvation number is not very exactly defined since its value may depend on the measurement technique