consider an exceptionally weak acid, HA, with Ka= 1 x 10-20. you make 0.1M solution of the salt NA. what is the pH.

Explanation:

Hello,

In this case, the dissociation of the given weak acid is:

Therefore, the law of mass action for it turns out:

That in terms of the change due to the reaction extent is:

Thus, by solving with the quadratic equation or solver, we obtain:

Which clearly matches with the hydrogen concentration in the solution, therefore, the pH is:

Regards.

i wish i could but this one is weird give me abc and i can solve it.