A student drops two metallic objects into a 120 gram steel container holding 150 gram of water at 25°C. One object is a190 gram cube of copper that is initially at75°C, and the other is a chunk of aluminum that is initially at 5.0°C.To the shock of the student, the water reaches a final temperature of 25°C, exactly where it started. Compute what is the mass of the aluminum chunk?
g