Chapter 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - 5-7 Enthalpy Calculations - Case Study - Questions - Page 212: 3

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Ethanol: Mass of $CO_2$: $6/1\ mol\times44.01\ g/mol=264.06\ g$ Volume: $1\ mol\times 94.11\ g/mol\div785\ g/L=0.120\ L$ $264.06\ g\div 0.120\ L= 2202.6\ g/L$ Octane: Mass of $CO_2$: $8/1\ mol\times44.01\ g/mol=352.08\ g$ Volume: $1\ mol\times 114.23\ g/mol\div699\ g/L=0.163\ L$ $352.08\ g\div 0.163\ L= 2154.4\ g/L$