Respuesta :

Number of moles = Mass/Formula Mass

Fm = 48(Four Carbons) + 152(8 Flourines)
Fm = 200

Number of Moles = 256/200

The number of moles in C4F8 is 1.28

Hope this helps :) ~

Answer:

1.325 moles of [tex]C_{4}F_{8}[/tex] are in 265 g of [tex]C_{4}F_{8}[/tex]

Explanation:

Number of moles of a compound=(mass of the compound)/(molar mass of the compound)

Molar mass of [tex]C_{4}F_{8}[/tex] = [tex](4\times atomic mass of C)+(8\times atomic mass of F)[/tex] or [tex](4\times 12g)+(8\times 19g)[/tex] or 200 g.

So number of moles of [tex]C_{4}F_{8}[/tex] in 265 g of [tex]C_{4}F_{8}[/tex] is (265g/200g) or 1.325 moles