energy released = -3680.0 kJ/mol
moles of this compound = mass / molar mass
                                     Â
= 1.029 / 150.46
                                     Â
= 6.84 x 10^-3
heat energy in kJ = 3680.0 kJ /mol x moles
                           Â
= 3680 x 6.84 x 10^-3
                          Â
= 25.17 kJ
heat capacity of calorimeter = heat energy / temperature
rise
                                           Â
= 25.17 / 4.77 °C.
                                           Â
= 5.27 kJ/°C.
heat capacity of calorimeter  = 5.27
kJ/°C.