The very stable compound SF6 is made by burning sulfur in an atmosphere of fluorine. S8(s) + 24F2(g) → 8SF6(g)
If you need 2.50 moles of SF6, you will need to use
(A) 0.313 moles of S8 and 7.50 moles of F2.
(B) 1.00 moles of S8 and 24.0 moles of F2.
(C) 0.125 moles of S8 and 3.00 moles of F2.
(D) 8.00 moles of S8 and 24.0 moles of F2.
(E) 2.00 moles of S8 and 12.0 moles of F2.