Use the Henderson-Hasselbalch equation.
pH = pKa + log (base)/(acid)
Your two big problems.
1. What pKa do you use?
2. which is the acid and which the base.
3. (Actually, it doesn't matter which is the acid and which the base because the concentrations are equal which means log 1 = 0 and pH = pKa.
SO your only problem is know which pka to use; i.e.k, pka1, pka2, pka3.
mixing 100ml of 0.015M Nah2PO4 and 100ml of NA2HPO4. What is the pH?
This has got to be simple but why am I having trouble with it?
2 answers
Soo, can you walk through the problem w final answer?