Question

A 25.00-mL sample of oxalic acid, H C.0, of unknown concentrationw equivalence point was reached when 45.16 mL of base had been added. What was the original concentration of the oxalic acid? (Hint: it may be beneficial to write down the balanced chemi f oxalic acid, H2C:04, of unknown concentration was titrated with 0.1225 M NaOH. The second equivalence point was reached when 45.16 mL of base was added. What was the origional concentration of oxalic acid? Please explain with steps. Thank you