Chemistry The estimated lattice energy for is CsF2+2347kj/mol. Use the data given to calculate an overall energy change for the formation of CaCl2 ... Lattice energy (estimated) ... 1458.8-2258=-799.2 kJ/mol Calculate overall energy change? Chemistry The estimated lattice energy for is CsF2+2347kj/mol. Use the data given to calculate an overall energy change for the formation of CaCl2 ... Lattice energy (estimated) ... 1458.8-2258=-799.2 kJ/mol Follow . ... Lattice energy for CaCl2 = +2258 kJ/mol Lattice energy (estimated) for CaCl = +717 kJ/mol. Calculate overall energy change? Chemistry The estimated lattice energy for is CsF2+2347kj/mol. Follow . ... Lattice energy for CaCl2 = +2258 kJ/mol Lattice energy (estimated) for CaCl = +717 kJ/mol. Follow . Calculate overall energy change? Use the data given to calculate an overall energy change for the formation of CaCl2 ... Lattice energy (estimated) ... 1458.8-2258=-799.2 kJ/mol. ... Lattice energy for CaCl2 = +2258 kJ/mol Lattice energy (estimated) for CaCl = +717 kJ/mol.