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Oxalic Acid,H2C2O4 Has Acid Dissociation Constants Ka1 = 5

Question 69

Multiple Choice

Oxalic acid,H2C2O4 has acid dissociation constants Ka1 = 5.9 × 10-2 and Ka2 = 6.4 × 10-5.What is the pH after 20.00 mL of 0.0500 M NaOH is added to 5.00 mL of 0.2000 M H2C2O4?


A) 1.23
B) 2.10
C) 2.80
D) 4.19

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