Answer :
First we calculate the pH of the solution.
pH + pOH = 14
pH + 0.253 = 14
pH = 14 - 0.253
pH = 13.747
Finally the concentration of H⁺ :
[H⁺] = 10 ^ - pH
[H⁺] = 10 ^- 13.747
[H⁺] = 1.790 x 10⁻¹⁴ M
hope this helps!
pH + pOH = 14
pH + 0.253 = 14
pH = 14 - 0.253
pH = 13.747
Finally the concentration of H⁺ :
[H⁺] = 10 ^ - pH
[H⁺] = 10 ^- 13.747
[H⁺] = 1.790 x 10⁻¹⁴ M
hope this helps!