How is acid/base chemistry defined and represented in aqueous solution?
In water under standard conditions, we know that
We know (i) that
(i) was by definition, and (ii) was by dint of VERY careful measurement. And these relationships define the very idea of acid/base chemistry in aqueous solution.
A solution is acidic if there there is a preponderance of the characteristic cation,
The solution is basic if
we know that