The concentration of fluoride ions in a saturated solution of barium fluoride is ________ M. The solubility product constant of BaF2 is 1.7 x 10-6 A.1.4 x 10-4 B.3.0 x 10-3 C.1.5 x 10-2 D.3.8 x 10-4 E.7.5 x 10-3 ANSWER: C.1.5 x 10-2