There are two different compounds of sulfur and fluorine. In SF6SF6, the mass of fluorine per gram of sulfur is 3.55 g F/g Sg F/g S. In the other compound, SFXSFX, the mass of fluorine per gram of sulfur is 1.18 g F/g Sg F/g S. What is the value of XXX for the second compound? Express your answer as an integer.

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)