What is the molar mass of calcium chloride hexahydrate?

Question

Quizplus · Accepted Answer

Calcium chloride hexahydrate has the chemical formula CaCl2·6H2O. The molar mass can be calculated by adding the individual molar masses of each element: 
Ca: 40.08 g/mol
Cl: 35.45 g/mol x 2 = 70.90 g/mol
H: 1.01 g/mol x 12 = 12.12 g/mol
O: 16.00 g/mol x 6 = 96.00 g/mol
Adding all of these up, we get:
40.08 g/mol + 70.90 g/mol + 12.12 g/mol + 96.00 g/mol = 219.1 g/mol. Therefore, the correct answer is E.

What Is the Molar Mass of Calcium Chloride Hexahydrate