While doing titration, a student recorded a burette reading of 10.0...

While doing titration, a student recorded a burette reading of 10.0 mL for the neutralization of $10.0 \mathrm{~mL} \mathrm{NaHC}_2 \mathrm{O}_4(\mathrm{aq})$ with $0.1 \mathrm{M} \mathrm{NaOH}(\mathrm{aq})$. In a separate experiment, 10.0 mL of this $\mathrm{NaHC}_2 \mathrm{O}_4(\mathrm{aq})$ solution could be completely oxidized by 10.0 mL of $\mathrm{KMnO}_4$ in an acidic medium. What would be the molarity of $\mathrm{KMnO}_4$ used by this student?