Consider a the titration of 1.7 M ascorbic acid (H2C6H6O6, Ka1 = 0.000079, Ka2 = 1.6e-12) with 2.0 M NaOH. What is the pH at the first halfway point of the titration? What is the pH at the second halfway point of the titration? pH= number (rtol=0.01, atol=1e-08) What is the pH at the first equivalence point of the titration?