Nitrite ion can be converted to nitrate ion in basic medium
CHEMISTRY · Multi-part · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions
Problem
Nitrite ion can be converted to nitrate ion in basic medium. Consider the following skeletal half-reaction written for a solution buffered at pH 13:
NO2−→NO3−
Respond to the tasks below.
(a) Add the minimal necessary water and hydroxide species to balance oxygen and hydrogen atoms.
(b) Determine the number of electrons that must be included, then write the balanced half-reaction with correct coefficients and charges.
(c) Show explicitly that the sum of the charges on the left equals the sum of the charges on the right in your balanced equation from part (b).