If the heat of combustion for a specific compound is -1080.0 kJ/mol and its molar mass is 26.89 g/mol, how many grams of this compound must you burn to release 263.60 kJ of heat?

Answer 1

1080 kJ/mole * x mole = 263.60 kJ

x = 0.244 moles

mass needed = 0.244 moles x 26.89 g/mole = 6.56 g