How much heat is required to vaporize 43.9 g of acetone, C3H6O, at its boiling point (56.1°C)?  ΔH=29.1 kJ/mol How much heat is required to vaporize 43.9 g of acetone, C3H6O, at its boiling point (56.1°C)?  ΔH=29.1 kJ/mol 87.6 kJ 1280 kJ 2460 kJ 22.0 kJ