1. If instead of glycine, oxalic acid was titrated. How many equivalent points can be seen from the plot?

2. Manually sketch a titration curve for oxalic acid from a potentiometric titration of 20.0 mL of 0.10 M oxalic acid with 0.10 M NaOH. Identify the following in the titration curve: A) pK1 and pK2 B) equivalence points C) buffering regions 
 Note: Oxalic acid Ka1 = 5.9 x 10-2 Ka2 = 6.4 x 10-5 
 Answer for this must be a photo of your sketch with proper label.