What is the specific heat of a metal if addition of 80.0 g of the metal at 24.0 degrees Celsius to 170.0 g of Cu (s= .38 J/g-c) at 266.4 degrees Celsius produces a mixture that reaches thermal equilibrium at 203.4 degrees Celsius?

s = J/g-c

The heat capacity of bomb calorimeters are determined by running a known, standard reaction. The combustion of 2.450 mmol of x caused the temperature of a bomb calorimeter to rise from 23.400 degrees Celsius to 26.600 degrees Celsius. For the case where T= 25.000 degrees Celsius, delta H = -2918 kj/mol, and delta ngas= -2 mol gas/ mol x for the combustion reaction, determine the heat capacity of the calorimeter.

C = kj/c