Question

If the heat of combustion for a specific compound is -1150.0 kJ/mol and its molar mass is 58.63 g/mol, how many grams of this compound must you burn to release 825.50 kJ of heat?

Answer 1

\[(moles)(-1150.0kJ/mol)=(825.50kJ)\] solve for moles. This will give you the number of moles that you need to release 825.50kJ of heat. Because the question wants your answer in grams convert moles to grams using this\[(moles)(58.63grams/mole)=?\]