A40.0-g block of ice at -15.00°c is dropped into a calorimeter (of negligible heat capacity) containing water at 15.00°c.

when equilibrium is reached, the final temperature is 8.00°c.

how much water did the calorimeter contain initially?

the specific heat of ice is 2090 j/kg • k, that of water is 4186 j/kg • k, and the latent heat of fusion of water is 33.5 × 104 j/kg.