The pH of a KOH solution that has concentration of H⁺ ion is 1.87 × 10⁻¹³ M, is 12.73 it means given solution is basic in nature.
pH of any solution is define as the negative logarithm of the concentration of H⁺ ion present in the solution, pH value ranges from 0 to 14.
i.e. pH = -log[H⁺]
In the question it is given that,
Concentration of H⁺ ion in the KOH solution = 1.87 × 10⁻¹³ M
pH of KOH solution = -log(1.87 × 10⁻¹³)
pH = -(-12.73)
pH = 12.73
Hence required pH is 12.73.
To know more about pH, visit the below link:
https://brainly.com/question/172153
