Question

Calculate the number of oxygen molecules and the number of oxygen atoms in 35.5g of 02

Answer 1

Explanation:

Mass of oxygen given = 35.5 g

Molecular mass of oxygen = 32 g/mole.

No. of molecules of O_2 in 35.5 g of O_2

$\frac{35.5}{32} \times 6.022\times10^{23}\\=6.68\times10^{23}$