Question
What amount of heat (in kJ) is required to convert 29.3 g of an unknown solid (MM = 67.44 g/mol) at -15.4 °C to a liquid at 42.7 °C? (heat capacity of solid = 1.95 J/g・°C; heat capacity of liquid = 1.18 J/g・°C; ∆Hfus = 5.72 kJ/mol; Tf = 28.3°C)
 
 

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