The molecular weight of Aluminium Nitrate [Al(NO3)3] is 212.9963584.
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Aluminium nitrate [Al(NO3)3] is an inorganic compound of three elements: Aluminium, Nitrogen, and Oxygen. The molecular weight of Aluminium nitrate is 212.9963584 which can be calculated by adding up the total weight (atomic weight multiplied by their number) of all its elements.
CALCULATION PROCEDURE: Aluminium Nitrate [Al(NO3)3] Molecular Weight Calculation
Step 1: Find out the chemical formula and determine constituent atoms and their number in an Aluminium nitrate molecule.
From the chemical formula, you will know different atoms and their number in an Aluminium nitrate molecule. The chemical formula of Aluminium nitrate is Al(NO3)3 or AlN3O9. From the chemical formula, you can find that one molecule of Aluminium nitrate has one Aluminium (Al) atom, three Nitrogen (N) atoms, and nine 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 Nitrogen (N): 14.00674 (Ref: Jlab-ele007)
Atomic weight of Oxygen (O): 15.9994 (Ref: Jlab-ele008)
Step 3: Calculate the molecular weight of Aluminium nitrate by adding the total weight of all atoms.
Number of Aluminium (Al) atoms in Aluminium nitrate: 1
Atomic weight of Aluminium: 26.9815384
Total weight of Aluminium atoms in Aluminium nitrate: 26.9815384 x 1 = 26.9815384
Number of Nitrogen (N) atoms in Aluminium nitrate: 3
Atomic weight of Nitrogen: 14.00674
Total weight of Nitrogen atoms in Aluminium nitrate: 14.00674 x 3 = 42.02022
Number of Oxygen (O) atoms in Aluminium nitrate: 9
Atomic weight of Oxygen: 15.9994
Total weight of Oxygen atoms in Aluminium nitrate: 15.9994 x 9 = 143.9946
Step 4: Calculate the molecular weight of Aluminium nitrate by adding up the total weight of all atoms.
Molecular weight of Aluminium nitrate [Al(NO3)3]: 26.9815384 (Aluminium) + 42.02022 (Nitrogen) + 143.9946 (Oxygen) = 212.9963584
So the molecular weight of Aluminium nitrate is 212.9963584.
Aluminium Nitrate [Al(NO3)3] Molecular Weight Calculation
| Molecular weight of Aluminium nitrate [Al(NO3)3] | |||
| Constituent atoms | Number of each atom | Atomic weight | Total weight |
| Aluminium (Al) | 1 | 26.9815384 | 26.9815384 |
| Nitrogen (N) | 3 | 14.00674 | 42.02022 |
| Oxygen (O) | 9 | 15.9994 | 143.9946 |
| Molecular weight of Aluminium nitrate [Al(NO3)3]: | 212.9963584 | ||
REFERENCES
- Jlab-ele007: https://education.jlab.org/itselemental/ele007.html
- Ciaaw-aluminium: https://www.ciaaw.org/aluminium.htm
- Jlab-ele008: https://education.jlab.org/itselemental/ele008.html
FURTHER READING
- PubChem – Aluminium nitrate: https://pubchem.ncbi.nlm.nih.gov/compound/Aluminium-nitrate
- Wikipedia – Aluminium nitrate: https://en.wikipedia.org/wiki/Aluminium_nitrate
RELATED POSTS
- Aluminium Iodide [AlI3] Molecular Weight Calculation
- Aluminium Chloride Hexahydrate [AlCl3.6H2O] Molecular Weight Calculation
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