The amino acid glycerine (H2NCH2COOH) has 2 equilibrium constants, one for the NH3 and one for COOH. pKa for COOH is 2.350 and pKa for NH3 is 9.778. at pH is 6.06 which compounds is predominate in solution?
a) a mixture of H3NCH2COOH & H3NCH2COO-
b) a mixture of H3NCH2COO- & H2NCH2COO2-
c) H3NCH2COO- only.