Question

What is the pH range for acids? For bases?

Answer 1

Acids: 1-6
Bases: 8-14
Neutral: 7
All values in whole integers, real values may be continuous.

Explanation:

The definition of pH is from the auto-dissociation of water, with an equal number of `OH^-` and `H^+` ions. This is set to 14, and the definition of pH is `pH = -log[H^+]` where [`H^+]` is the molar concentration of the hydrogen ion.

Similarly pOH can be written as `pOH = -log[OH^-]` .

At equilibrium, [`H^+] = [OH^-]`, and therefore
`pH = pOH = 7`

Any `pH` less than 7 is an "acidic" solution - containing more
[`H^+] than [OH^-]`.

Any `pH` more than 7 is a "basic" solution - containing less
[`H^+] than [OH^-]`.