Question

Calculate the pH of hydronium ions in a 0.000 01 M solution of the strong acid HI.

Answer 1

pH = 5

Step-by-step explanation:

We are given;

• Concentration of a solution HI as 0.00001 M

We are required to calculate the pH of Hydronium ions.

• When the acid dissociates in water to;

HI + H₂O → H₃O⁺(aq) + I⁻(aq)

• Therefore;

• The concentration of H₃O⁺ ions is 0.00001 M\

• We need to know that pH = -log[H₃O⁺]

Therefore;

pH =-log 0.00001 M

= 5

Thus, the pH of the hydronium ions is 5