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What mass of octane (in g) is required to produce 1240 kJ of heat?
Octane (C8H18) is a component of gasoline that burns according to the following equation:
C8H18(l)+252O2(g)→8CO2(g)+9H2O(g)
ΔH∘rxn=−5074.1 kJ
Update:
Idk howto do this can someone help me with it please
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