Question

Question #477b7

Answer 1

The hydrogen ion concentration is 4 × 10⁻⁸ mol/L.

This problem is like another Socratic question.

See What is the hydrogen ion concentration of a 0.10 M HClO solution if the pH is 4.25?

In your problem, pH = 7.4.

So [H⁺] = `10^-7.4` mol/L = 4 × 10⁻⁸ mol/L