Solid KF has a lattice energy of 804 kJ/mol and a heat of solution (in water) of -15 kJ/mol. RbF has a lattice energy of 768 kJ/mol and a heat of solution (in water) of -24 kJ/mol. Which salt forms stronger attractions with water? Question 30 options: RbF, since it has a more negative heat of hydration. They form equally strong attractions with water, since they both have negative heats of mixing. KF, since it has a more negative heat of hydration. RbF, since it has a smaller lattice energy. KF, since it has a larger lattice energy.