Chapter 4, Problem 49QAP

A solution of potassium permanganate reacts with oxalic acid, H₂C₂O₄, to form carbon dioxide and solid manganese(IV) oxide (MnO₂) according to the equation

$3{\text{H}}_2{\text{C}}_2{\text{O}}_4\left(aq\right)+2{\text{MnO}}_4{}^{-}\left(aq\right)+2{\text{H}}^{+}\left(aq\right)\to 6{\text{CO}}_2\left(g\right)+2{\text{MnO}}_2\left(s\right)+4{\text{H}}_2\text{O}$

(a) If 20.0 mL of 0.300 M potassium permanganate are required to react with 13.7 mL of oxalic acid, what is the molarity of the oxalic acid?

(b) What is the mass of manganese(IV) oxide formed?