A compound of chlorine and fluorine, ClFn, reacts at about 75C with uranium metal to produce uranium

Question:

A compound of chlorine and fluorine, ClFn, reacts at about 75°C with uranium metal to produce uranium hexafluoride, UF6, and chlorine monofluoride, ClF(g). A quantity of uranium produced 3.53 g UF6 and 343 mL ClF at 75°C and 2.50 atm. What is the formula (n) of the compound? Describe the bonding in the molecule, using valence bond theory.