WEAK AND STRONG ELECTROLYTES

    Strength of electrolyte depend on their dissociate when dissolved in solvent. If electrolyte dissociate partially when dissolved in solvent, then that electrolyte is weak electrolyte. And if electrolyte dissociate completely when dissolved in water then that electrolyte is strong electrolyte.

STRONG ELECTROLYTE

 Strong electrolyte is the electrolyte which is dissociate completely when dissolved in solved to release ions. And these electrolyte are high electric conductor due to their ability to dissociate completely in solvent.

     Example of strong electrolyte is sodium chloride. When sodium chloride dissolved in water dissociate completely to form free ions of sodium ions and chloride ions.

                              NaCl > Na+ + Cl-

Mineral acids such as sulphuric acid, hydrocloric acid and nitric acid are also strong electrolytes. They dissociate completely into ions when dissolved in water
   
                            H2SO4 > H2+ + SO4-
     
                            HCl > H+ + Cl-

WEAK ELECTROLYTE

     Weak electrolytes are electrolyte which are partially dissociate in solvent to give ions. They do not efficient conduct electricity due to releasing of few ions when dissolved in solvent.
 
      Example of weak electrolyte include a solution of ammonium chloride because ammonium chloride dissociate partially in solvent to form ammonium ions and chloride ions.

                                                 

Partially dissociate means that after formation of ions (ammonium ions and chloride ions) they recombine again to for ammonium chloride.

  Ather example of weak electrolyte include, organic acid such as ethanoic acid and
methanoic acid.

NB;
   Electrolyte can have the same concentration but vary in strength.
       Example;  6M hydrochloric acid is strong electrolyte
                         6M methanoic acid is weak electrolyte.

Also elctrolyte can be of similar strength but different concentration.
       Example; 4M hydrochloric acid is strong electrolyte
                        2M sulphuric acid is is strong electrolyte.