1) The structure of oxalic acid is shown below.

A 25.0 mL solution of oxalic acid reacts completely with 15.0 mL of 2.50 M NaOH.
The concentration of the oxalic acid solution is
A. 0.667 M
B. 0.750 M
C. 1.33 M
D. 1.50 M
Solution.