Question

What is the ph of an aqueous solution with [h3o+] = 2×10−14 m ?

Answer 1

The general formula for finding pH is:

$pH=-log[ H _{3}O ^{+}]$ -> This equation could also work with H+.

So using the formula and plugging in the hydronium ion concentration:

$pH=-log(2* 10^{-14}M)$

$pH=13.7$

So the solution has a pH of 13.7.