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Acid-Base Strength





                       The strength and weakness of an acid can be seen from the

                amount  of  residual  acid  produced  and  how  it  tends  to  be
                dissolved in water.




                Strong Acids



                       Strong acids are acids that ionize

                completely  in  water  Examples  of

                                                                 2
                strong acids include HCl, HBr, HI, H SO   4
                etc.  HCl  when  dissolved  into  water
                forms  hydrogen  ions  and  chlorine
                ions.     Strong        acids      are      strong

                electrolytes that ionize completely in
                water










                                                                                      Weak Acids


                                                                    Weak  acids  are  acids  that  are
                                                      only  slightly  ionized  in  water.  For

                                                      example,   acetic    acid  (CH COOH),
                                                                                                3
                                                      when CH COOH is dissolved in water
                                                                     3
                                                      contains  a  mixture  of  molecules  of
                                                      non-ionized acid, H O  and conjugate
                                                                                      +
                                                                                  3
                                                      base.















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