Answer to Question #55345 in General Chemistry for Vladimir
If the heat of combustion for a specific compound is -1500.0 kJ/mol and its molar mass is 75.47 g/mol, how many grams of this compound must you burn to release 769.90 kJ of heat?
1 mole : 1500 kJ = x mol : 769.90 kJ
mol = 0.513
mass = 0.513 mol x 75.47 g/mol=38.7g