Problem: A liquid fuel mixture contains 30.05 % hexane (C6H14), 16.05 % heptane (C7H16), and the rest octane (C8H18).What maximum mass of carbon dioxide is produced by the complete combustion of 13.0 kg of this fuel mixture?

FREE Expert Solution

Step 1. Find the mass of each gas

13.0 30.05100 = 3.907 kg C6H1413.0 16.05100 = 2.087 kg C7H1613 - (3.907+2.087)= 7.007 kg C8H18


Step 2. Write the balanced combustion equations

2 C6H14 + 19 O2 → 14 H2O + 12 CO2

C7H16 + 11 O2 → 8 H2O + 7 CO2

2 C8H18 + 25 O2 → 18 H2O + 16 CO2

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Problem Details

A liquid fuel mixture contains 30.05 % hexane (C6H14), 16.05 % heptane (C7H16), and the rest octane (C8H18).

What maximum mass of carbon dioxide is produced by the complete combustion of 13.0 kg of this fuel mixture?

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