Question

H3PO4 + HCO3- ↔ H2PO4- + H2CO3 The conjugate ____of HCO3- is ______.Select one:a.acid ; H2CO3b.base ; H2PO4 -c.base ; H2CO3d.acid ; CO3 - 2

Answer 1

a. The conjugate acid of HCO3- is H2CO3.

Step-by-step explanation:

In this case, the HCO3- after reacting, forms the H2CO3, that is, it accepts a proton (H+).

So, the base HCO3- accepts a proton, so H2CO3 is the conjugate acid of HCO3-.