A certain weak acid, HA, has a Ka value of 2.6×10−7. Calculate the percent ionization of HA in a 0.10 M solution.

The percent ionization is 0,16%

Explanation:

The percent ionization is defined as the number of ions that exist in a substance.

First, we find the [A-] using the ka equation

HA ⇄

[H+] = [A-]

since the ionization constant is very small we can assume that the final concentration of [HA] is the same

Now we calculate the percent ionization using these values

PI=0,16%