Answer: The correct option is [tex]1.11\times 10^{2} g/mol[/tex]
Explanation:
Atomic mass of calcium ,Ca = 40.07 g/mol
Atomic mass of chlorine ,Cl = 35.5 g/mol
Molar mass of [tex]CaCl_2[/tex]:
= (Atomic mass of Ca+2 × (Atomic mass of Cl))
= (40.07 g/mol + (2 × 35.5))=111.07 g/mol
[tex]111.07=1.1107\times 10^{2} g/mol\approx 1.11\times 10^{2} g/mol[/tex]
Hence, the correct option is [tex]1.11\times 10^{2} g/mol[/tex]
