Chemistry homework for January 11, 2001 1. How much heat will be absorbed by 320 g of water when its temperature is raised by 35 C? 2. How much heat will be given off by 55 g of water as it cools from 87C to 25C? 3. Calculate the specific heat of aluminum is 16 500 J of heat are absorbed in raising the temperature of 150 g of aluminum by 125 degrees C. 4. Calculate the specific heat of glass from the following data. The temperature of a piece of glass with a mass of 65 grams increases by 26 degrees C when it absorbs 840 J of heat energy. 5. The temperature of 150 g drinking glass decreased from 25 degrees C to 14 degrees C as 200 grams of water were added. Determine the original temperature of the water. (Hint: heat loss must equal heat gained.)

