Calorimetry HELP!! Worked on this problem for an hour and cannot figure it out. Please help. A 5.00 g sample of aluminum pellets (specific heat capacity = 0.89 J/°C·g) and a 10.00 g sample of iron pellets (specific heat capacity = 0.45 J/°C·g) are heated to 100.0°C. The mixture of hot iron and aluminum is then dropped into 90.1 g of water at 21.0°C. Calculate the final temperature of the metal and water mixture, assuming no heat loss to the surroundings.