A coffee cup calorimeter, Ccal = 1.639x103 J/°C-1, contains 34.4 mL of water at a temperature of 18.7 °C. An unknown metal with a mass of 45.45 g is heated to 68.1 °C then added to the calorimeter. The final temperature of the calorimeter is 24.4 °C. What is the specific heat capacity of the unknown metal? The specific heat capacity of water is 4.184 J/g-1 °C-1.