Answer: -5.40
Explanation:
pH is the negative logarithm of hydrogen ion concentration in a solution.
mathematically, pH is expressed as
pH = - log(H+)
Given that [H+] = 2.5 x 10^5
Then, pH = -log(2.5 x 10^5)
pH = - (5.40)
pH = -5.40
Thus, the pH of the solution is -5.40
