Which of these acids has more equivalence points in its titration curve? #"H"_2"SO"_4# or #"H"_3"PO"_4#? How can you tell which one is the weaker acid?

1 Answer
Jul 13, 2017

Answer:

Go with the second one

Explanation:

Not all acids ionize or dissociate in the same way and produce the same concentration of #H^+#. There is some difference.

The one that produces more equivalence points for the titration is #"H"_3"PO"_4#. One can obtain from the first half-equivalence point the #pK_a# of each acid + compare.