How much heat is required to convert solid ice with a mass of 525 g and at a temperature of -10.5 °C to liquid water at a temperature of 69.5 °C? (The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the heat of fusion for water is: Lf = 334 kJ/kg.)