Answer :
As Per Given Information
Given volume of O₂ is 53 L
We've been asked to find the number of moles of O₂ gas contained
For finding the number of moles the following formulae is use
[tex]\\ \bullet{\boxed{\blue{\bf{Number \: of \: moles = \frac{Given \: volume}{22.4} }}}}[/tex]
Put the given value we obtain
[tex] \sf \dashrightarrow \: number \: of \: moles \: = \frac{53}{22.4} \\ \\ \sf \dashrightarrow \: number \: of \: moles \: = 2.366 [/tex]
So, the number of moles is 2.366 .
