Given :
Number of molecules of [tex]C_4H_2F_7I[/tex].
To Find :
How many moles are in given number of molecules.
Solution :
We know, in 1 moles of any element/compound contains [tex]6.022\times 10^{23}[/tex] at atoms/molecules.
So, number of moles in [tex]5.4\times 10^{24}[/tex] molecules are :
[tex]n = \dfrac{5.4\times 10^{24}}{6.022\times 10^{23}}\\\\n = 8.97 \ moles[/tex]
Therefore, number of moles are 8.97 .