. 25.0 g piece of aluminum (which has a molar heat capacity of 24.03 J/mol°C) is heated to 86.4°C
and dropped into a calorimeter containing water (the specific heat capacity of water is 4.18 J/g°C)
initially at 21.1°C. The final temperature of the water is 26.8°C. Calculate the mass of water in
the calorimeter.