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Calculate the lattice enthalpy of CaCl(2...

Calculate the lattice enthalpy of `CaCl_(2)` given that the enthalpy of :
i) Sublimation of Ca in `"121.8 kJ mol"^(-1)`
ii) Dissociation of `Cl_(2)` to `2Cl` is `"242.8 kJ mol"^(-1)`
iii) Ionisation of `Ca" to "Ca^(2+)" is 2422 kJ mol"^(-1)`
iv) Electron gain for `Cl" to "Cl^(-)" is - 355 kJ mol"^(-1)`
v) `DeltaH_(f)^((o))" overall is "-"795 kJ mol"^(-1)`

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