Which of the following statements about a weak acid strong base titration is/are correct?O The pH after equivalence point of the weak acid strong base titaration is determined by using the Kb expression for the conjugate baseO A buffer solution of weak acid and its conjugate base is formed before the eqivalene is reached O The pH at the equivalence poin of a weak monoprotic acid strong base tiration is equa to the pH at the equivalence point of a strong acid base tirationO the increase in pHin the region near the equivalence the increase in pH in the region near the equivalence point of a weak acid strong base tiration is grater than the pH change in the same region of a strong acid stong base tiration

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13-12-2022
Chemistry

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Which of the following statements about a weak acid strong base titration is/are correct?O The pH after equivalence point of the weak acid strong base titaration is determined by using the Kb expression for the conjugate baseO A buffer solution of weak acid and its conjugate base is formed before the eqivalene is reached O The pH at the equivalence poin of a weak monoprotic acid strong base tiration is equa to the pH at the equivalence point of a strong acid base tirationO the increase in pHin the region near the equivalence the increase in pH in the region near the equivalence point of a weak acid strong base tiration is grater than the pH change in the same region of a strong acid stong base tiration

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ANJALIMARDI ANJALIMARDI · Answer 1 · 2022-12-17T11:57:28+01:00

Statements A) The pH after equivalence point of the weak acid strong base titration is determined by using the Kb expression for the conjugate base and B) A buffer solution of weak acid and its conjugate base is formed before the equivalence is reached O about a weak acid strong base titration are the correct answers.

What is weak acid strong base titration?

The acid-base titration is a quantitative analysis method that determines the concentration of acid and base via neutralization. The neutralization is accomplished by adding a standard volume of known amounts of acid and base.

The pH scale is used to determine acid-base titration. The titration curve is a depiction of the pH of the solution during titration and the acid from the burette. Acetic acid is a strong base, whereas sodium hydroxide is a weak acid.

From the graph, you will find that

At first, it rises sharply until it reaches a particular point. This rise is caused by the anion in weak acid, which acts as the common ion, reducing acid ionization.CH3COOH+[Na++OH−]→CH3COO−+Na++H2O

There will be a dramatic increase at first, but it will progressively decrease after a certain point. This shift is caused by the development of a buffer solution of weak acid and its conjugate base prior to equivalence.
The point at which the acid and base are neutralized is known as the equivalency point. The concentration of the weak acid equals the concentration of its conjugate base in this case. As a result, pH=pKa. pH=pKa, which is sometimes known as pH=Kb. When all of the acid is converted to its conjugate base, the pH will be nearly 7 or higher.
It travels rearward after reaching the equivalency point.

Hence, Both are correct statements.

To learn more about weak acid strong base titration from the given link:

https://brainly.com/question/9690966

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