Aluminium Nitrate Nonahydrate Molecular Weight

Aluminium nitrate nonahydrate is a chemical compound with the molecular formula Al(NO3)3·9H2O. It consists of one aluminium cation (Al3+) and three nitrate anions (NO3-) that are ionically bonded to each other, along with nine water molecules that are hydrogen-bonded to the ions.

The molecular weight of aluminium nitrate nonahydrate can be calculated by adding the atomic weights of each of its constituent atoms. The atomic weight of aluminium is 26.98 g/mol, the atomic weight of nitrogen is 14.01 g/mol, the atomic weight of oxygen is 16.00 g/mol, and the atomic weight of hydrogen is 1.01 g/mol.

Therefore, the molecular weight of aluminium nitrate nonahydrate can be calculated as follows:

(1 x 26.98 g/mol) + (3 x 14.01 g/mol) + (27 x 16.00 g/mol) + (18 x 1.01 g/mol)

= 26.98 g/mol + 42.03 g/mol + 432.00 g/mol + 18.18 g/mol

= 519.19 g/mol

So, the molecular weight of aluminium nitrate nonahydrate is 519.19 g/mol.