The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 ºC. The specific heats of C2Cl3F3 (l) and C2Cl3F3(g) are 0.91 J/g.ºK and 0.67 J/g.ºK, respectively. The heat of vaporization for the compound is 27.49 kJ/mol.
A. Calculate the heat required to convert 37.5 g of C 2Cl3F3 from a liquid at 12.75 ºC to a gas at 75.10 ºC. Express your answer using two significant figures.