An ice cube at 0.00 °C with a mass of 8.64g is placed into 85.0g of water at 45°C. If no heat is lost to the surroundings, what is the final temperature of the water sample after all the ice is melted. (The specific heat of water is 4.184J/g°C, the ∆Hfus = 6.02kJ/mol)

How much heat energy (in J) is involved when 55 grams of gaseous water, at 107 °C is cooled to 56° C? (Given: ∆Hvap = +40.65 kJ/mol, CH2O(g) = 1.84 J/g°C, CH2O(l) = 4.184 J/g°C). Watch your sign for q!

Calculate the energy released as heat when 18.7 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point. heat capacity of Hg(1) Constants for mercury at 1 atm melting point enthalpy of fusion 28.0 J/(mol-K) # 234.32 K 2.29 kJ/mol 9 = MacBook Pro

Two 20.0 g ice cubes at -20.0 °C are placed into 245 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature, Tf, of the water after all the ice melts. heat capacity of H₂O(s) heat capacity of H₂O(1) enthalpy of fusion of H₂O 37.7 J/(mol-K) 75.3 J/(mol-K) 6.01 kJ/mol Tf = x10 TOOLS °C