# Problem: Balance the following redox reactions occurring in basic solution.NO2−(aq) + Al(s) → NH 3(g) + AlO2−(aq)a. NO2−(aq) + H2O(l) + 2Al(s) + OH−(aq) → NH3(g) + 2AlO2−(aq)b. NO2−(aq) + H2O(l) + 2Al(s) + OH−(aq) → 2NH3(g) + 2AlO2−(aq)c. NO2−(aq) + H2O(l) + Al(s) + 2OH−(aq) → 2NH3(g) + AlO2−(aq)d. NO2−(aq) + 2H2O(l) + Al(s) + 2OH−(aq) → NH3(g) + AlO2−(aq)

###### FREE Expert Solution
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###### FREE Expert Solution

We are being asked to balance the given redox reaction occurring in a basic solution

When balancing redox reactions under basic conditions, we will follow the following steps.

Step 1. Separate the whole reaction into half-reactions
Step 2. Balance the non-hydrogen and non-oxygen elements first
Step 3. Balance oxygen by adding H2O to the side that needs oxygen (1 O: 1 H2O)
Step 4. Balance hydrogen by adding H+ to the side that needs hydrogen (1 H: 1 H+)
Step 5. Balance the charges: add electrons to the more positive side (or less negative side)
Step 6. Balance electrons on the two half-reactions
Step 7. Get the overall reaction by adding the two reaction
Step 8. Balance remaining H+ by adding an equal amount of OH- ions to both sides
Step 9. H+(aq) will combine with OH-(aq) to form H2O(l)­
Step 10. Cancel out common species.

Balance the redox reaction under basic condition:

NO2(aq) + Al(s) → NH3(g) + AlO2(aq)

85% (477 ratings)
###### Problem Details

Balance the following redox reactions occurring in basic solution.

NO2(aq) + Al(s) → NH 3(g) + AlO2(aq)

a. NO2(aq) + H2O(l) + 2Al(s) + OH(aq) → NH3(g) + 2AlO2−(aq)

b. NO2(aq) + H2O(l) + 2Al(s) + OH(aq) → 2NH3(g) + 2AlO2(aq)

c. NO2(aq) + H2O(l) + Al(s) + 2OH(aq) → 2NH3(g) + AlO2(aq)

d. NO2(aq) + 2H2O(l) + Al(s) + 2OH(aq) → NH3(g) + AlO2(aq)

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Based on our data, we think this problem is relevant for Professor Riehl's class at Minnesota State University - Mankato.