Question

Give the formula of the conjugate base of HSO4- . Give the formula for the conjugate acid of HSO4-.

Answer 1

Concepts and reason

This problem is based on the concept of conjugate acid and conjugate base.

A chemical species generates a negatively charged or neutral species on losing one proton which is called its conjugate base. It is usually anionic or negative in nature whereas on gaining one proton it generates a species which is either positively charged or neutral in nature, this species is called conjugate acid.

Fundamentals

Conjugate base and conjugate acid can be determined for nay chemical species with the help of protonation and deprotonation.

The formation of conjugate base of ${\rm{HSO}}_4^ -$ is given below:

${\rm{HSO}}_4^ - \to {{\rm{H}}^ + } + \;{\rm{SO}}_4^{ - 2}$

Thus, the conjugate base will be ${\rm{SO}}_4^{ - 2}$ .

The formation of conjugate acid of ${\rm{HSO}}_4^ -$ is given below:

${\rm{HSO}}_4^ - {\rm{ + }}\;{{\rm{H}}^ + } \to {{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}$

Thus, the conjugate acid will be ${{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}$ .

Ans:

Formula of conjugate base for ${\rm{HSO}}_4^ -$ is ${\rm{SO}}_4^{ - 2}$ .

Formula of conjugate base for ${\rm{HSO}}_4^ -$ is ${{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}$ .