Respuesta :
Answer:
When H2O acts as a base, it gains one H, which forms its conjugate acid, H30. ... Conjugate acid-base pairs: H2SO4/HSO4 andH3O+/H2O ... CO32-(aq) + H2O(1) 2 HCO3 (aq) + OH(aq).
The conjugate acid of HSO4- in the reaction is H2SO4.
The conjugate acid of a particular base is obtained by adding a proton to it.
Now we have the reaction; H2SO4 (aq) + H2O(l) -----> H3O+(aq) + HSO4^-(aq). We have to look at the reaction carefully and find out which specie can be obtained from HSO4- by adding a proton.
Clearly, the specie that we are looking for is the same specie from which a proton was removed to yield HSO4-.
Through examination of the reaction shows that this specie must be H2SO4.
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