Question

The species: H₂O,`"HCO"_3^(-)`,`"HSO"_4^(-)` and NH₃ can act both as Brönsted acids and bases. For each case give the corresponding conjugate acid and base.

Answer 1

The table below lists the conjugate acids and conjugate bases for the given species.

Species	Conjugate acid	Conjugate base
`"H"_2"O"`	`"H"_3"O"^(+)`	`"OH"^(-)`
`"HCO"_3^(-)`	`"H"_2"CO"_3`	`"CO"_3^(2-)`
`"HSO"_4^(-)`	`"H"_2"SO"_4`	`"SO"_4^(2-)`
`"NH"_3`	`"NH"_4^(+)`	`"NH"_2^(-)`