chem help 36 and 37 the word cut off on 37 is larger

The solution for problem 36 is in the picture attached. I am 80% sure it’s correct.
moles of Oxygen:-
Molecules of oxygen:-
Now
Same
[tex]\\ \rm\Rrightarrow No\:of\:moles=\dfrac{1.343(10^{23})}{6.022(10^{23})}[/tex]
[tex]\\ \rm\Rrightarrow 0.223mol[/tex]
Volume remains same 5L
#37
So velocity is more