How much heat is released if 35.0 g of ethanol (C₂H₅OH)burns in excess oxygen? C₂H₅OH(l)+ 3O₂(g)→ 2 CO₂(g)+ 3 H₂O(l)ΔH°_rxn = -1367 kJ/mol

Name: How much heat is released if 35.0 g of ethanol (C 2 H 5 OH)burns in excess oxygen? C 2 H 5 OH(l)+ 3O 2 (g)→ 2 CO 2 (g)+ 3 H 2 O(l)ΔH° rxn = -1367 kJ/mol
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Quizplus · Accepted Answer

The molar mass of ethanol is 46.08 g/mol. For 35.0 g of ethanol, the moles are 35.0 g / 46.08 g/mol = 0.759 mol. The heat released is 0.759 mol × 1367 kJ/mol = 1040 kJ.

How Much Heat Is Released If 35