the pH of HPO4-2 is 5.
The conjugate base of HPO4 is PO43-
HPO4-2 is an acid and a base. however when mixed with NO2- (Base) then HPO4-2 must be an acid.
pKa=40
how do you calculate pKa
the pH of HPO4-2 is 5.
The conjugate base of HPO4 is PO43-
HPO4-2 is an acid and a base. however when mixed with NO2- (Base) then HPO4-2 must be an acid.
The conjugate base of HPO4^2- is PO4^3-.
pKa=40
how do you calculate pKa
pKa=2.86
hydrogen phosphate
That's not a stable compound. If you meant HPO4--, it can be formed by either the reduction of the PO43- ion or oxidation of the H2PO4- ion.
pKa = 15
It is around pKa=13
Doxofylline Pka value is about 9.8.