Problem: If you complete and balance the following equation in acidic solutionMn2+(aq) + NaBiO3(s)  →  Bi3+(aq) + MnO4-(aq) + Na+(aq)how many water molecules are there in the balanced equation (for the reaction balanced with the smallest whole-number coefficients)?

🤓 Based on our data, we think this question is relevant for Professor Dieskow's class at Joliet Junior College.

FREE Expert Solution

Mn2+(aq) + NaBiO3(s) → Bi3+(aq) + MnO4(aq) + Na+(aq)


Step 1. Separate the whole reaction into half-reactions

Mn2+(aq) → MnO4(aq)

NaBiO3(s) → Bi3+(aq) + Na+(aq)


Step 2. Balance the non-hydrogen and non-oxygen elements first

Mn2+(aq) → MnO4(aq)

NaBiO3(s) → Bi3+(aq) + Na+(aq)


Step 3. Balance oxygen by adding H2O to the side that needs oxygen (1 O: 1 H2O)

Mn2+(aq) + 4 H2O(l) → MnO4(aq)

NaBiO3(s) → Bi3+(aq) + Na+(aq) + 3 H2O(l)


Step 4. Balance hydrogen by adding H+ to the side that needs hydrogen (1 H: 1 H+)

Mn2+(aq) + 4 H2O(l) → MnO4(aq) + 8 H+(aq)

NaBiO3(s) + 6 H+(aq) → Bi3+(aq) + Na+(aq) + 3 H2O(l)


Step 5. Balance the charges: add electrons to the more positive side (or less negative side)

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Problem Details

If you complete and balance the following equation in acidic solution

Mn2+(aq) + NaBiO3(s)  →  Bi3+(aq) + MnO4-(aq) + Na+(aq)

how many water molecules are there in the balanced equation (for the reaction balanced with the smallest whole-number coefficients)?


Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Balancing Redox Reaction concept. You can view video lessons to learn Balancing Redox Reaction. Or if you need more Balancing Redox Reaction practice, you can also practice Balancing Redox Reaction practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dieskow's class at Joliet Junior College.