Answer to Question #325165 in General Chemistry for ruby

Question

    i.       How many kilojoules of heat are absorbed when 0.46 g of chloroethane (C₂H₅Cl, boiling point 12.3ËšC) vaporizes at its normal boiling point? The molar heat of vaporization of chloroethane is 26.4 Kj/mol.

Answer 1

(0.46 g C₂H₅Cl)(1 mol C₂H₅Cl/64.51g C₂H₅Cl)(26.4 kJ/1 mol C₂H₅Cl) = 0.188 kJ