1. The calorimeter contained 500 g of water and the temperature rise measured was 1.40oC when a sample of magnesium metal (0.1946 g) was ignited in a constant-volume calorimeter of heat capacity 1349J/o C. where the specific heat of water = 4.184 Determine the heat of combustion of magnesium metal in kJ/g.
2. Explain what volume of 7.48*10^-2 M phosphoric acid can be neutralized with the 115 mL of 0.244 M sodium hydroxide?