The molecular weight of Calcium aluminate [CaAl₂O₄] is 158.0386768.

Calcium aluminate [CaAl₂O₄] (CAS Registry Number: 12042-68-1) is an inorganic compound of three elements: Calcium (Ca), Aluminium (Al), and Oxygen (O). The molecular weight of Calcium aluminate [CaAl₂O₄] is 158.0386768 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

CALCULATION PROCEDURE: Calcium Aluminate [CaAl₂O₄] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in a Calcium aluminate molecule.
From the chemical formula, you will know different atoms and their number in a Calcium aluminate molecule. The chemical formula of Calcium aluminate is CaAl₂O₄. From the chemical formula, you can find that one molecule of Calcium aluminate consists of one Calcium (Ca) atom, two Aluminium (Al) atoms, and four Oxygen (O) 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 Aluminium (Al): 26.9815384 (Ref: ciaaw-aluminium)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

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

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

Number of Aluminium atoms in Calcium aluminate: 2
Atomic weight of Aluminium: 26.9815384
Total weight of Aluminium atoms in Calcium aluminate: 26.9815384 x 2 = 53.9630768

Number of Oxygen (O) atoms in Calcium aluminate: 4
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Calcium aluminate: 15.9994 x 4 = 63.9976

Step 4: Calculate the molecular weight of Calcium aluminate by adding up the total weight of all atoms.

Molecular weight of Calcium aluminate: 40.078 (Calcium) + 53.9630768 (Aluminium) + 63.9976 (Oxygen) = 158.0386768

So the molecular weight of Calcium aluminate is 158.0386768.

Calcium aluminate [CaAl₂O₄] Molecular Weight Calculation

REFERENCES:

• Ciaaw-aluminium: https://www.ciaaw.org/aluminium.htm
  
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Pubchem-20: https://pubchem.ncbi.nlm.nih.gov/element/20
• Ciaaw-calcium: https://www.ciaaw.org/calcium.htm

FURTHER READING

• Calcium aluminate from PubChem 
• Calcium aluminate from Wikipedia
• Calcium aluminate from Materion

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