A coffee cup calorimeter contains 525.0 g of water at 25.0 oC. To it are added:
350.0 g of water at 48.3 oC
480.0 g of water at 63.8 oC
Assuming the heat absorbed by the styrofoam is negligible, calculate the expected final temperature. The specific heat of water is 4.184 J g-1 K-1.