Problem: Many home barbeques are fueled with propane gas (C3 H8 ).What mass of carbon dioxide (in kg) is produced upon the complete combustion of 18.9 L of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621 g/mL. (Hint: Begin by writing a balanced equation for the combustion reaction.)

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Write the balanced combustion reaction of propane and use stoichiometry to determine the mass of CO2 produced

The combustion of propane or C3H8 will appear as

C3H8 (g) + O2 (g) → CO2 (g) + H2O (g)

C - 3                                C - 1
H - 8                                H - 2
O - 2                                O - 3

The reaction is not yet balanced. Balance C by giving CO2 a cofficient of 3

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Many home barbeques are fueled with propane gas (C3 H8 ).


What mass of carbon dioxide (in kg) is produced upon the complete combustion of 18.9 L of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621 g/mL. (Hint: Begin by writing a balanced equation for the combustion reaction.)

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