, Freon-12 (CCl2F2) is prepared by the reaction: 3 CCl4(1) + 2 SbF3(s)-- 3 CCl2F2(g) + 2 SbCl3(s). If the percent yield is 72.0%, how antimony trifluoride (SbF3) must be reactedactual yield of 25.0 g of Freon-12.