A monoprotic acid, HA, is dissolved in water:
HA ⇌ H+ + A-
The equilibrium concentrations of the reactants and products are
[HA] = 0.240 M
[H+] = 2.00 x 10-4 M
[A-] = 2.00 x 10-4 M
Calculate the value of pKa for the acid HA.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Weak Acids concept. If you need more Weak Acids practice, you can also practice Weak Acids practice problems.