Problem: The combustion of propane may be described by the chemical equation, C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O (g) w many grams of O2(g) are needed to completely burn 12.7 g of C3H8(g)?

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Using the molar mass of C3H8 and O2 and their ratio from the reaction, mass of O2 needed 

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The combustion of propane may be described by the chemical equation, C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O (g) w many grams of O2(g) are needed to completely burn 12.7 g of C3H8(g)?

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