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                                                                          Chapter 9 Titrimetric Methods of Analysis  325



                   Corrected absorbance               Corrected absorbance












                             Volume of titrant                  Volume of titrant
                 (a)                                (b)




                   Corrected absorbance               Corrected absorbance












                             Volume of titrant                  Volume of titrant
                 (c)                                (d)




                   Corrected absorbance  or           Corrected absorbance  or          Figure 9.30






                                                                                        Spectrophotometric titration curves for the
                                                                                        titration of an analyte, A, with a titrant, T, to
                                                                                        form a product, P, in the presence of a visual
                                                                                        indicator. Titration curves are shown for
                                                                                        cases where (a) only A absorbs; (b) only T
                                                                                        absorbs; (c) only P absorbs; (d) A and T
                             Volume of titrant                  Volume of titrant
                                                                                        absorb; (e) P and T absorb; and (f) only the
                 (e)                                (f)                                 visual indicator absorbs.
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