A major family of solutes are the electrolytes. An electrolyte is a substance whose solution conducts electricity.
Electrolytes are ionic substances which dissociate in solution to conduct charge.
In contrast, a nonelectrolyte gives a solution which does not conduct electricity. Nonelectrolytes are generally non-ionic substances. Notice that electrolytes can be ionic compounds, like sodium chloride, or they can be covalent, molecular compounds like hydrogen chloride or hydrogen fluoride, both of which exist as perfectly good polar covalent molecules in the gas phase, but which react in water to dissociate into ions. Strong Electrolytes Strong Electrolytes are completely ionized in aqueous solution in concentrations of 1 M or less. Strong acids are acids which completely dissociate at concentrations of 1 M or less.