A 25.0 g piece of aluminum (which has a molar heat capacity of 24.03 J/deg celsius mol) is heated to 82.4 deg celsius and dropped into a coffee cup calorimeter containing water initially at 22.3 deg celsius. The final temperature of the water and aluminum mixture is 24.9 deg celsius. Calculate the mass of water in the calorimeter. The specific heat of water is 4.18 J/deg C.