I thought I might as well use the blog system for homework help.

I have two questions.

1) What is the strength of the conjugate of an acid/base. Does it depend on what the acid/base reacts with?

2) When using Amphiprotic substances and reacting that with another amphiprotic susbtance, what is the final products gained?

For example:

1.1) H₂PO₄^-(aq) + H₂O(l) = H₃PO₄ (aq) + OH^-(aq)

1.2) H₂PO₄^-(aq) + H₂O(l) = HPO_4^2-(aq) + H₃O⁺(aq)

There are two possible equations. Which would occur experimentally.

Also, today, there was a question in class as to why H₄O²⁺ didn't form when Hydronium ions did. I have an idea that maybe the overall charge is too largely positive that it repels positive protons, even though the negatively charged (?) lone pairs would try to attract the proton.

Am I any where close to right?

I mean, the only explanation my teacher gave me was that water is a bitch to learn (I'm paraphrasing here) and it's really special.

Not good enough, in my opinion.