CBSE Class 11-science Answered
What is conjugate acid and conjugate base.
Asked by ABHILASHA | 24 Oct, 2019, 06:23: AM
Expert Answer
1) The base formed from an acid by donating a proton is called the conjugate base of the acid.
Acid = Conjugate base + H+
2) The acid formed from a base by accepting a proton is called the conjugate acid of the base.
Base + H+ = Conjugate acid
a. NH3 - Conjugate acid NH4+
b. H2O - It behaves as an acid and base both. Its conjugate acid will be H3O+ and conjugate base will be OH-.
c. HCO3- - It behaves as an acid and base both. Its conjugate acid will be H2CO3 and conjugate base will be CO32-
d. PH3 - Conjugate acid PH4+
e. In a reaction:
CO32- + H2O → HCO3- + Cl-
HCO3- is the conjugate acid of base CO32-.
Cl- is the conjugate base of acid H2O.
Answered by Ramandeep | 24 Oct, 2019, 01:05: PM
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