## Q. 14.2

Identifying Brønsted–Lowry Acids, Bases, and Conjugate Acid–Base Pairs

For the following reaction in aqueous solution, identify the Brønsted–Lowry acids, bases, and conjugate acid–base pairs:

STRATEGY

The simplest approach is to identify the conjugate acid–base pairs, the species whose formulas differ by just one proton.

## Verified Solution

The second reactant is HF, and the first product is its conjugate base $F^-$. The second product is $H_2S$, and the first reactant is its conjugate base $HS^-$. Therefore, the Brønsted–Lowry acids, bases, and conjugate acid–base pairs are as follows: