Conjugate Acid-Base Pair Class 11 Notes | EduRev

Chemistry Class 11

Class 11 : Conjugate Acid-Base Pair Class 11 Notes | EduRev

The document Conjugate Acid-Base Pair Class 11 Notes | EduRev is a part of the Class 11 Course Chemistry Class 11.
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Conjugate Acid-Base Pair(CABP) :-

In an acid-base reaction

Acid → H+   conjugate base

Base + H+   → conjugate acid.

e.g.

HCl(aq) + NH3(aq) Conjugate Acid-Base Pair Class 11 Notes | EduRev NH4 (aq) + Cl-(aq)

Conjugate Acid-Base Pair Class 11 Notes | EduRev

Note:- A CABP is different from each other only by single proton.

e.g.

HSO-4 is the conjugate base of H2SO4 but SO2-4 is not. 


Relative strength of Acids/Bases :-

Any Species and its conjugate species are opposite of each other in terms of strength. e.g.

Conjugate Acid-Base Pair Class 11 Notes | EduRev

e.g.

Strength order of acids.

HClO4 > H2SO4 > HCl > CH3COOH

strength order of conjugate bases

ClO4- < HSO4< Cl- < CH3COO-

An ionic Equilibrium exists between the unionised electroyte molecules and the ions that result from ionisation

Conjugate Acid-Base Pair Class 11 Notes | EduRev

Types of keq

1. Self ionization of water

Conjugate Acid-Base Pair Class 11 Notes | EduRev

2. Acid dissociation constant

Conjugate Acid-Base Pair Class 11 Notes | EduRev

3. Base dissociation constant 

Conjugate Acid-Base Pair Class 11 Notes | EduRev

4. Salt hydrolysis

Conjugate Acid-Base Pair Class 11 Notes | EduRev

5. Sparingly soluble salt

Conjugate Acid-Base Pair Class 11 Notes | EduRev       

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