1.

Identify the conjugate acid base pair for the following reaction in aqueous solution (i) HS^(-)(aq)+HF iff F^(-)(aq)+H_(2)S(aq) (ii) HPO_(4)""^(2-)+SO_(3)""^(2-) iff PO_(4)""^(3-)+HSO_(3)""^(-) (iii) NH_(4)""^(+)CO_(3)""^(2-) iff NH_(3)+HCO_(3)""^(-)

Answer»

Solution :(i)
`*` HF and `F^(-), HS^(-) " and "H_(2)S` are two conjugate acid - base pairs.
`* F^(-)` is the conjugate base of the acid HF (or) HF is the conjugate acid of `F^(-)`.
`* H_(2)S` is the conjugate acid of `HS^(-)" (or) "HS^(-)` is the conjugate base of `H_(2)S`.
(ii)
`* HPO_(4)""^(2-)" and "PO_(4)""^(3-), SO_(3)""^(2-)" and "HSO_(3)""^(-)` are two conjugate acid - base pairs.
`* PO_(4)""^(3-)` is the conjugate base of the acid `HPO_(4)""^(2-)` (or)
`" "HPO_(4)""^(2-)` is the conjugate acid of `PO_(4)""^(3-)`.
`* HSO_(3)""^(-)` is the conjugate acid of `SO_(3)""^(2-)" (or) "SO_(3)""^(2-)` is the conjugate base of `HSO_(3)""^(-)`.
(iii)
`* NH_(4)""^(+)" and "NH_(3), CO_(3)""^(2-)" and "HCO_(3)""^(-)` are two conjugate acid - base pairs.
`*HCO_(3)""^(-)` is the conjugate of acid `CO_(3)""^(2-)" (or) "CO_(3)""^(2-)` is the conjugate bases of `HCO_(3)""^(-)`.
`* NH_(3)` is the conjugate base of `NH_(4)""^(+)" (or) "NH_(4)""^(+)` is the conjugate acid of `NH_(3)`.


Discussion

No Comment Found