222g of oxygen contains how many moles?

moles = grams/molar mass

13.88 mol oxygen

To determine the number of moles in 222g of oxygen, we can use the molar mass of oxygen and the formula:

Molar mass of oxygen = 16g/mol

The number of moles (n) can be calculated using the formula:

n = mass / molar mass

Substituting the given values:

n = 222g / 16g/mol

Dividing 222g by 16g/mol, we find:

n ≈ 13.875 mol

Therefore, 222g of oxygen contains approximately 13.875 moles.