Question

Find the number of moles in 224 litres of O2​

Answer 1

Answer:

Number of moles in 22.4 L of O

2

at STP =22.4/22.4=1 mole

Number of atoms present in 1 mole of oxygen=6×10

23

so total no. of oxygen atoms=2×6×10

23

=12×10

23

atoms

Answer 2

At STP, the volume occupied by one mole of the gas is 22.4 liters.

The number of moles can be calculated as follows.⇒$\frac{Given Volume}{volume occupied by one mole of the gas at STP}$

In the given question,

The volume(V) given is 224 liters.

No. of moles = $\frac{V}{22.4}$

                       =$\frac{224}{22.4}$

                        =10

The number of moles present in 224 liters of O₂ is 10.