CharisseH287873 CharisseH287873
  • 03-11-2022
  • Chemistry
contestada

How many moles of oxygen will be needed to combust 20.50 moles of C7H16?

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KrystalynO539641 KrystalynO539641
  • 03-11-2022

Answer

225.5 mol O₂

Procedure

Assuming the complete combustion of heptane, we will consider the following reaction for our calculations.

C₇H₁₆ + 11 O₂ → 7 CO₂ + 8 H₂O

The moles of oxygen can be determined by stoichiometry

[tex]20.50\text{ mol C}_7\text{H}_{16}\frac{11\text{ mol O}_2}{1\text{ mol C}_7\text{ H}_{16}}=225.5\text{ mol O}_2[/tex]

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