# chemistry

How much heat will be released if 30 g of octane is burned in excess of oxygen?
C8 H18 + 12.5 O2 yields 8CO2 + 9H2O Delta H= -5483.4 kJ

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1. You know 5483 kJ is released when burning 114 g octane. So how much is released if you burn 30 g.

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2. 56

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