Graph for the conductometric titration between a weak acid and a srong base?

Answer 1

Weak Acid with a Strong Base, e.g. acetic acid with NaOH: Initially the

conductance is low due to the feeble ionization of acetic acid. On the addition of

base, there is decrease in conductance not only due to the replacement of H+ by

Na+ but also suppresses the dissociation of acetic acid due to common ion

acetate. But very soon, the conductance increases on adding NaOH as NaOH

neutralizes the un-dissociated CH3COOH to CH3COONa which is the strong

electrolyte. This increase in conductance continues raise up to the equivalence

point. The graph near the equivalence point is curved due the hydrolysis of salt

CH3COONa. Beyond the equivalence point, conductance increases more rapidly

with the addition of NaOH due to the highly conducting OH− ions

Answer 2

In a conductometric titration between a weak acid and a strong base, the graph will have a gradual increase in conductivity at the beginning as the strong base is added to the weak acid. The equivalence point will be characterized by a steep increase in conductivity due to the complete neutralization of the weak acid. After the equivalence point, the conductivity will plateau as excess strong base is added.