Question #998ab
1 Answer
The pH of the buffer is equal to 7.34.
You're dealing with a buffer solution that consists of a weak acid, in your case hypochlorous acid,
Even before doing any calculations, you can predict what the pH of the solution will be relative to the value of the pKa.
You know that, at equal concentrations of weak acid and conjugate base, the pH of the solution is equal to the pKa. Since you have more acid than base present, you can predict that the pH will be smaller than the
You'll need to use the Henderson-Hasselbalch equation, which looks like this
In your case, the pKa will be equal to
The pH of your solution will thus be
Indeed, the pH of the solution is smaller than the