(i) 92 grams of sodium:

Given: Mass of sodium = 92g

Molar mass = 23g/mol

To calculate the number of moles, we apply the formula:

⇒

⇒ Number of moles = 4 mol

Thus, the number of moles in 92 grams of sodium is 4 mol.

(ii) 108 grams of aluminium:

Given: Mass of aluminium = 108g

Molar mass = 27g/mol

To calculate the number of moles, we apply the formula:

⇒

⇒ Number of moles = 4 mol

Thus, the number of moles in 108 grams of aluminium is 4 mol.