Lithium chloride (LiCl) and Potassium bromide (KBr) each exhibit the rock salt (cubic, C.N. =6) lattice structure, yet KBr is much less soluble in the water than LiCl. In fact, LiCl will even dissolve in many organic solvents such as chloroform or acetone. Discuss. Hint; consider the effects arising from both lattice energy considerations and the behavior you would predict based on the Born Salvation equation
ΔGsolv =-[Naz2eo2/8πεori][1-1/D2]