The molecular weight of Calcium fluoride (CaF₂) is 78.074806326.

Calcium fluoride (CaF₂) is an inorganic compound of two elements: Calcium, and Fluorine. The molecular weight of Calcium fluoride is 78.074806326 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Calcium Fluoride (CaF₂) Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Calcium fluoride molecule.
You will know different atoms and their number in a Calcium fluoride molecule from the chemical formula. The chemical formula of Calcium fluoride is CaF₂. From the chemical formula, you can find that one molecule of Calcium fluoride has one Calcium (Ca) atom and two Fluorine (F) atoms.

Step 2: Find out the atomic weights of each atom (from the periodic table). 

Atomic weight of Calcium (Ca): 40.078 (Ref: Pubchem-20, Ciaaw-calcium)
Atomic weight of fluorine (F): 18.998403163 (Ref: Pubchem-9, Ciaaw-fluorine)

Step 3: Calculate the molecular weight of Calcium fluoride by adding the total weight of all atoms.

Number of Calcium (Ca) atoms in Calcium fluoride: 1
Atomic weight of Calcium: 40.078
Total weight of Calcium atoms in Calcium fluoride: 40.078 x 1 = 40.078

Number of Fluorine (F) atoms in Calcium fluoride: 2
Atomic weight of Fluorine: 18.998403163
Total weight of Fluorine atoms in Calcium fluoride: 18.998403163 x 2 = 37.99680633

Step 4: Calculate the molecular weight of Calcium fluoride by adding the total atomic weight of all atoms. 

Molecular weight of Calcium fluoride (CaF2): 40.078 (Calcium) + 37.99680633 (Fluorine)

So the molecular weight of Calcium fluoride is 78.074806326.

Calcium Fluoride (HF) Molecular Weight Calculation

REFERENCES:

• Pubchem-9: https://pubchem.ncbi.nlm.nih.gov/element/9
• Ciaaw-fluorine: https://www.ciaaw.org/fluorine.htm
• Ciaaw-calcium: https://www.ciaaw.org/calcium.htm
• Jlab-ele020: https://education.jlab.org/itselemental/ele020.html

See also:

• Molarity of 48% (w/w) Hydrofluoric Acid (HF)