What is the conjugate acid of the following? H2O NH3 SO4-

Question

What is the conjugate acid of the following?

H2O

NH3

SO4-

Answer 1

To answer this we have to take each molecule and protonize it to make it its conjugate acid pair. In other words, each of the molecules will act as a base therefor wanting to accept a hydrogen atom.

So

H20 goes to H30+

NH3 goes to NH4+

SO4- goes to HSO4

I also find it odd that SO4 is a negative 1 and not a negative 2 but thats for another conversation. Hope this helps.

Answer 2

1. H₃O⁺
2. NH₄⁺
3. HSO₄