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Chemistry, 15.05.2020 23:10 jdavis2310

The heat of formation of crystalline sodium chloride is -410 kJ mol-1. The heat of sublimation of sodium metal is 180.8 kJmol-1. The heat of dissociation of chlorine gas into atoms is 242.7 kJ mol-1. The ionisation energy of Na and electron affinity of Cl are 493.7kJ and -368.2 kJ respectively. Calculate the lattice energy of NaCl.

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