Determine DH_lattice for KBr if the ΔH_solution(KBr)= +19.9 kJ/mol and the ΔH_hydration(KBr)= -670.kJ/mol. A)+650 kJ/mol B)-650 kJ/mol C)+690 kJ/mol D)-710 kJ/mol E)-690 kJ/mol

Question

Quizplus · Accepted Answer

The lattice enthalpy (ΔH_lattice) can be calculated using the formula: ΔH_solution = ΔH_lattice + ΔH_hydration. Rearranging gives ΔH_lattice = ΔH_solution - ΔH_hydration. Substituting the given values: ΔH_lattice = 19.9 kJ/mol - (-670 kJ/mol) = 19.9 kJ/mol + 670 kJ/mol = 689.9 kJ/mol, which rounds to +690 kJ/mol.

Determine DHlattice for KBr If the ΔHsolution (KBr)= +19

Determine DH_lattice for KBr If the ΔH_solution(KBr)= +19