Strong electrolyte

The electrolytes ionizing completely or almost completely are strong electrolytes. For example : strong acids, strong bases and salts.

Because ionization is essentially complete, a solution of a strong electrolyte contains practically no un-ionized molecules — it is made up of ions. The ionization of a strong electrolyte is therefore written with a single forward arrow, not the double equilibrium arrow used for weak electrolytes. Strong acids such as HCl, $\mathrm{H_2SO_4}$ and $\mathrm{HNO_3}$, strong bases such as NaOH and KOH, and salts such as NaCl and $\mathrm{CH_3COONa}$ all belong to this clas …