The molar mass of CaF2 (calcium fluoride) is calculated by adding the atomic masses of its constituent elements. Calcium (Ca) has an atomic mass of approximately 40.08 g/mol, and fluorine (F) has an atomic mass of about 19.00 g/mol. Since there are two fluorine atoms in CaF2, we multiply the atomic mass of fluorine by 2.
Here’s the calculation:
Molar mass of CaF2 = Atomic mass of Ca + (2 × Atomic mass of F)
Molar mass of CaF2 = 40.08 g/mol + (2 × 19.00 g/mol)
Molar mass of CaF2 = 40.08 g/mol + 38.00 g/mol
Molar mass of CaF2 = 78.08 g/mol
Therefore, the molar mass of CaF2 is 78.08 g/mol.