If the above equation is balanced with integer coefficients, the value of is . (Round off to the Nearest Integer).

Question

If the above equation is balanced with integer coefficients, the value of  is . (Round off to the Nearest Integer).

Canvas Classes · Accepted Answer

Step 1 — Identify the half-reactions:

Reduction:  (Mn: , gain of 5e⁻)
Oxidation:  (C: , loss of 2e⁻ per , i.e., 2e⁻ total)

Step 2 — Balance electrons:
LCM of 5 and 2 = 10
- 2  gain  e⁻
- 5  lose  e⁻

So , ,

Step 3 — Balance O:
Left O: ... wait,  has 4 O.
Left O from : ; from : ; total = 28
Right O from : ; from :

Step 4 — Balance H:

Verify charge:
Left: 
Right:  ✓

Answer:

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