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If 0.600 moles of C6H14 are reacted with 5.7 moles of oxygen and the products are...

If 0.600 moles of C6H14 are reacted with 5.7 moles of oxygen and the products are collected in a 4.0 L container at 100.0 .C, what is the total pressure at the end of the reaction?

2 C6H14 (l) + 19 O2 (g) à 12 CO2 (g) + 14 H2O (g)

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Answer #1

1. Both are in limiting amount.

Moles of CO2 formed = 6×0.60 = 3.6 mol

Moles of H2O formed = 7×0.60 = 4.2 mol

Total moles formed = 3.6+4.2 =7.8 mol

PV =nRT

P = 7.8×0.0821×373/4.0

= 59.7 atm

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