8. 1.250 L of a 0.7601 mol/L Sodium Sulfide aqueous solution is mixed with 500.0 mL of a 0.7450mol/L aqueous solution of Lead (II) Nitrate. A. How much energy is absorbed or released by the reaction?

B. If the reaction is carried out in a calorimeter whose constant is 14.60 kJ/°C and the solutions are initially at 21.000°C, what is the final temperature of the reaction solution on completion. Assume the heat capacity of the final solution is 4.200 J/g°C and that it has a density of 1.05 g/mL. Also assume that any solid formed does not absorb or give off heat.