Chapter 15, Problem 83CP

Interpretation Introduction

Interpretation: To balance the equation for the reaction that takes place in basic solution.

  ${\text{Br}}^{\text{-}}\left(\text{aq}\right){\text{ + MnO}}_{\text{4}}{}^{\text{-}}\left(\text{aq}\right)\to {\text{BrO}}_{\text{3}}{}^{\text{-}}\left(\text{aq}\right){\text{ + MnO}}_{\text{2}}\left(\text{s}\right)$

Concept introduction: Here are the rules to balance redox reactions in basic medium:

Determine the oxidation numbers of the elements and write the oxidation and reduction half equation.

Balance the atoms of elements other than O and H. Use H₂O to balance O, OH- to balance the charges. Equalize the number of electrons on both the half reactions and then add the half reactions.