Question

In acid-base titration,
equivalent quantities of
hydronium ions and hydroxide
ions are present​

Answer 1

water and hydronium ions

hope this is helpful

Answer 2

In an acid-base titration, equivalent quantities of hydronium ions and hydroxide ions are present​ which react to form salt solutions.

Explanation:

• In an aqueous system, the relationship between hydronium ions and hydroxide ions $[H+]$and $[OH-]$ is defined by the ionic product of water$Kw$ .

• At 25°C ionic product is $10^{-14}$
• $[H+] [OH-] =10^{-14}$
• The ionic product of water for neutral water is pH 7.for this sample the hydrogen ion and hydroxide ion is same.
• pH 7 will never be reached in any titation.
• At equivalence point,equal amounts of $H+ and OH-$ ions .This will combine to form water molecule and its pH is 7 that is neutral.
• pH at equivalence point for the titration will be 7 and this value stands true for strong acid and strong base.