pH of Dihydrogenphosphate-Anion H2PO4-
Posted: Wed Sep 20, 2017 2:15 am
H2PO4- c=0.001 pKa1=7.21 pKa2=12.67; pH with the Ph-calculator resulted in pH=5.11;
The same calculation with pKb=11.87 resulted in pH=7.027;
I think these two results should be the same?
Where is the error?
The same calculation with pKb=11.87 resulted in pH=7.027;
I think these two results should be the same?
Where is the error?