pH of 0.05MHCL,0.05M Acetic Acid, and 0.05M Amino Acid \#1 Vs. mL of 0.05MNaOH Added pHHCL=pH Acetic Acid =pH Amino Acid \#1 U.vu ivi ivavi muueu (IIIL) 2. In standard titration plots volume in milliliters is not used for the x-axis but milliequivalent of base (OH). Equivalents are the moles of OHadded divided by the total moles of hydrogen atoms (H+)present. Convert volume to mole of OHby multiply the volumes (in liters) by 1.0 and then divide by total moles of HCl which is 0.001mol(0.05mol/I0.02l). For the HCl and acetic acid titration the x-axis will be 01 equivalents; and for the amino acid it will be either 02 or 03. Why? From the graph determine the pKa values for the amino acid and its pH