Calculate the lacttice energy of magnesium nitride using the following data, in addition to relevant data from the Data Booklet.
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Enthalpy change
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Value/KJ mol-1
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Atomization of Mg(s)
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+148
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Total of electron affinities for the change N(g) → N3-(g)
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+2148
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Enthalpy of formation of Mg3N2(s)
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-461
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