# Aluminium Silicate [Al2SiO5] Molecular Weight Calculation

The molecular weight of Aluminium silicate [Al2SiO5] is 162.0455768.

Aluminium silicate [Al2SiO5] (CAS Registry Number: 12141-46-7) is an inorganic compound of three elements: Aluminium (Al), Silicon (Si), and Oxygen (O). The molecular weight of Aluminium silicate [Al2SiO5] is 162.0455768 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.

# CALCULATION PROCEDURE: Aluminium silicate [Al2SiO5] Molecular Weight Calculation

Step 1: Find out the chemical formula and determine constituent atoms and their number in an Aluminium silicate molecule.
From the chemical formula, you will know different atoms and their number in an Aluminium silicate molecule. The chemical formula of Aluminium silicate is Al2SiO5. From the chemical formula, you can find that one molecule of Aluminium silicate consists of two Aluminium (Al) atoms, one Silicon (Si) atom, and five Oxygen (O) atoms.

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

Atomic weight of Aluminium (Al): 26.9815384 (Ref: ciaaw-aluminium)
Atomic weight of
Silicon (Si): 28.0855 (Ref: Jlab-ele014)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)

Step 3: Calculate the molecular weight of Aluminium silicate by adding the total weight of all atoms.

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

Number of Silicon (Si) atoms in Aluminium silicate: 1
Atomic weight of Silicon: 28.0855
Total weight of Manganese atoms in Aluminium silicate: 28.0855 x 1 = 28.0855

Number of Oxygen (O) atoms in Aluminium silicate: 5
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Aluminium silicate: 15.9994 x 5 = 79.997

Step 4: Calculate the molecular weight of Aluminium silicate by adding up the total weight of all atoms.

Molecular weight of Aluminium silicate: 53.9630768 (Aluminium) + 28.0855 (Silicon) + 79.997 (Oxygen) = 162.0455768

So the molecular weight of Aluminium silicate is 162.0455768.

Aluminium Silicate [Al2SiO5] Molecular Weight Calculation

## REFERENCES:

• Ciaaw-aluminium: https://www.ciaaw.org/aluminium.htm
• Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
• Jlab-ele014: https://education.jlab.org/itselemental/ele014.html
• cas.org: https://commonchemistry.cas.org/detail?cas_rn=12141-46-7

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