"An acid with a pKa of 8 is present in a solution of pH 6. What's the reason between the protonated and deprotonated bases?"
I'm probably completely wrong, but I tried Handerson-Hasselbach's equation here. Got stuck at [tex] \frac {log[A-]}{log[HA]} = -2 [/tex]. I can't think of anything else how to calculate this. Thank you!