11863 G of SrCl₂∙ 6H₂O Contains _____ Molecules of Strontium

118.63 g of SrCl₂∙ 6H₂O contains _____ molecules of strontium chloride.

A) 2.680 × 10²³
B) 1.346 × 10²⁴
C) 5.540 × 10²³
D) 6.224 × 10 ^{− 24}