Answer:
[tex]\text{pH}=3.6[/tex]
Explanation:
Given that,
[tex][H^+]=2.5\times 10^{-4}\ M[/tex]
We need to find the pH of a solution with [tex][H^+]=2.5\times 10^{-4}\ M[/tex].
We know that,
[tex]\text{pH}=-\text{log}[H^+]\\\\=-\text{log}[2.5\times 10^{-4}]\\\\=-(-3.6)\\\\=3.6[/tex]
So, the pH of the solution is 3.6.