posted by steph .
A 49g piece of ice at 0.0C is added to a sample of water at 9.0C. All of the ice melts and the temperature of the water decreases to 0.0C . How many grams of water were in the sample?
(mass ice x heat fusion) + [mass water x specific heat water x (Tfinal-Tinitial)] = 0
Solve for mass water.