Ten grams (10.000g) of oxalic acid, MW=90.04, is added to one liter of water. The acid dissociation constants for oxalic acid are: Ka1 = 5 x10-2 Ka2 = 5 x 10-5.
a. Explain how much sodium, MW=40.00, is needed to titrate the oxalic acid to the first end point making the sodium hydroxide?