During a permanganate titration conducted in strongly acidic solution at 25 °C
CHEMISTRY · Multi-part · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions
Problem
During a permanganate titration conducted in strongly acidic solution at 25 °C, the reduction of the permanganate ion proceeds according to the following incomplete half-reaction:
MnO4−→Mn2+
Answer the following questions about this half-reaction.
(a) Write the fully balanced half-reaction, including all necessary species and coefficients for atoms and charge.
(b) Describe, in words, how you verified that both mass balance and charge balance are satisfied in the half-reaction you wrote in part (a).
(c) The reaction occurs in a solution that is 1.0 M in H2SO4. Explain why each additional species that appears in your balanced equation is reasonable given these reaction conditions.