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Titration of diprotic acid (H(2)A) by s...

Titration of diprotic acid `(H_(2)A)` by strong base has been summarised in following graph

What is the pH at II equivalence point?

A

`6.0`

B

`11.83`

C

`9.66`

D

`12`

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The correct Answer is:
B
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Titration of diprotic acid (H_(2)A) by strong base has been summarised in following graph What are the pH of solution when it shows maximum buffer action?

Titration of diprotic acid (H_(2)A) by strong base has been summarised in following graph What is composition of mixture when pH of solution is 10.137?

During the titration of a weak diprotic acid (H_(2)A) against a strong base (NaOH) , the pH of the solution half-way to the first equivalent point and that at the first equivalent point are given respectively by:

Assertion : In a titration of weak monoprotic acid with strong base, the pH at the half equivalent point is pK_(a) . Reason : At half equivalence point, it will form acidic buffer at its maximum capacity where [acid] = [salt].

10 mL of H_(2)A (weak diprtic acid) solutio is titrated against 0.1M NaOH. pH of the solution is plotted against volume of strong base added and following obserbation is made Ip pH of the solution at first equivalence point is pH_(1) and at secnd equibalence point is pH_(2^.) Calculate the value of (pH_(2)-pH_(1)) at 25^(@)C Given for H_(2)A,pK_(a_1) =4.6 and pK_(a_2) =8, log 25=1.4

A 20.0 mL sample of a 0.20 M solution of the weak diprotic acid H_(2)A is titrated with 0.250 M NaOH. The concentration of solution at the second equivalent point is:

In which of the following acid-base titration, the pH is greater than 8 at the equivalence point ?

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