Question

How many moles of C4F8 are in 265 grams of C4F8?

Answer 1

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 2

1.325 moles of
`C_(4)F_(8)` are in 265 g of
`C_(4)F_(8)`

Step-by-step explanation:

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

Molar mass of
`C_(4)F_(8)` =
`(4* atomic mass of C)+(8* atomic mass of F)` or
`(4* 12g)+(8* 19g)` or 200 g.

So number of moles of
`C_(4)F_(8)` in 265 g of
`C_(4)F_(8)` is (265g/200g) or 1.325 moles