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

Multiple Choice

Determine ΔH_solute 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