Calculate the pH of the following: 0.01mol/l of hydrochloric acid (HCl).

Answer 1

Hydrochloric acid (HCl) is a strong acid, which means it fully dissociates in water. The dissociation of HCl can be represented by the equation: HCl → H+ + Cl-

Since the concentration of HCl is given as 0.01 mol/L, the concentration of H+ ions will also be 0.01 mol/L.

pH is defined as the negative logarithm of the H+ ion concentration. Therefore, we can calculate the pH using the formula:

pH = -log[H+]

Substituting the given concentration:

pH = -log(0.01)

Using a calculator, we find:

pH ≈ 2

Therefore, the pH of 0.01 mol/L hydrochloric acid (HCl) is approximately 2.