Question

Hydrogen ion concentration in mol/L in a solution of pH = 5.4 will be ______.

विकल्प

• 3.98 × 10⁻⁶

• 3.68 × 10⁻⁶

• 3.88 × 10⁶

• 3.98 × 10⁸

Answer 1

Hydrogen ion concentration in mol/L in a solution of pH = 5.4 will be 3.98 × 10⁻⁶.

Explanation:

pH = − log [H⁺] = log `1/(["H"^+])`

5.4 = log `1/(["H"^+])`

On Solving, [H⁺] = 3.98 × 10⁻⁶