Identify the set of stoichiometric coefficients that balances the reaction equation for the combustion of octane. C₈H₁₈ O₂ CO₂ H₂O A)1, 25, 8, 9 B)1, 17, 8, 9 C)2, 34, 16, 18 D)2, 25, 16, 18 E)None of the above coefficients balance the reaction equation.

Question

Quizplus · Accepted Answer

The balanced equation for the combustion of octane is:

C8H18 + 25O2 → 16CO2 + 18H2O

The set of stoichiometric coefficients that balances this equation is:
- C8H18: 2 (since 2 x 8 = 16 C atoms and 2 x 18 = 36 H atoms)
- O2: 25 (since 25 x 2 = 50 O atoms)
- CO2: 16 (since 16 x 1 = 16 C atoms)
- H2O: 18 (since 18 x 2 = 36 H atoms)

Therefore, the correct answer is D) 2, 25, 16, 18.

Identify the Set of Stoichiometric Coefficients That Balances the Reaction