Using KF as an example, write equations that refer to Hsoln and Hhyd. Lattice energy as H

Using KF as an example, write equations that refer to ΔHsoln and ΔHhyd. Lattice energy as ΔH for the reaction K1(g) + F2(g) 8n KF(s). Show how you would utilize Hess’s law to calculate ΔHsoln from ΔHhyd and ΔHLE for KF, where ΔHLE = lattice energy. ΔHsoln for KF, as for other soluble ionic compounds, is a relatively small number. How can this be since ΔHhyd and ΔHLE are relatively large negative numbers?