An aluminum container whose mass is 205 g contains 300 g of water at 20 0 C. In this container is then placed 250 g of iron at 150 0 C and 20 g of ice at −10 0 C. Find the final temperature of the mixture. The specific heat of aluminum and iron is 0.21 cal/g C 0 and 0.11 cal/g C 0 , respectively. The specific heat of ice is 0.50 cal/g C 0 while its heat of fusion is 80 cal/g