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How do I work out standard enthalpy change of solution??

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    Cs+ = -276
    F-= -483
    Lattice energy =-747
    Compound= CsF(s)

    Could someone go through the steps ?
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    Didn't mean to have two same pictures XD

    (Original post by Hazel99)
    Didn't mean to have two same pictures XD
    To dissolve an ionic compound there are two energy steps involved:

    1. The lattice enthalpy of the compound (this gives gaseous ions) which must be endothermic (some syllabuses define an exothermic lattice enthalpy).
    2. The hydration enthalpy of all of the ions, which is an exothermic process.

    The enthalpy of solution is 1 + 2
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