The complete combustion of propane, C3H8(g), is represented by the equation: C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(l) ΔH° = -2220 kJ. How much heat is evolved in the complete combustion of 2.50 g C3H8(g)? 2.22 kJ 5.56 kJ 245 kJ 126 kJ 50.4 kJ
Added by Roberto H.
Step 1
The molar mass of carbon (C) is approximately 12.01 g/mol, and the molar mass of hydrogen (H) is approximately 1.01 g/mol. Therefore, the molar mass of propane is (3*12.01 g/mol) + (8*1.01 g/mol) = 44.11 g/mol. Show more…
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