Question

Define conjugate acid and conjugate base with example

Answer 1

A conjugate acid contains one more H atom and one more + charge than the base that formed it.

A conjugate base contains one less H atom and one more - charge than the acid that formed it.
Let us take the example of bicarbonate ions reacting with water to create carbonic acid and hydronium ions.

HCO₃⁻ + H₂O → H₂CO₃ + OH⁻
base + acid → Conj A + Conj B

We see that HCO₃⁻ becomes H₂CO₃. It has one more H atom and one more + charge (-1 + 1 = 0). So H₂CO₃ is the conjugate acid of HCO₃⁻.

The H₂O becomes OH⁻. It has one less H atom and one more – charge. So OH⁻ is the conjugate base of H₂O.

Answer 2

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Here is your answer

Conjugate acid base pair :

An acid base pair which differ from the single proton is called conjugate acid base pair

Ex: HCl+H2O«- - - -»Cl+H3O

In the above w

equation the conjugate acid base pair is

1) HCl, Cl

2) H3O, H20