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Fluoro carbon polymers can be made by fl...

Fluoro carbon polymers can be made by fluorinationg polythene.
(i) `(CH_(2))_(n) + 4n Co F_(3) rarr (CF_(2))_(n) + 2 nHF + 4 nCoF_(2)`
Where `n` is large integer. The `CoF_(3)` can be regenarted by the above reaction.
(ii) `2CoF_(2) + F_(2) rarr 2CoF_(3)`
If the `HF` formed in reactionn (i) cannot be reused, calculate the weight of `F_(2)` consumed by `1.0 g` of `(CF_(2))_(n)` produced.

A

`2.0 g`

B

`2.52 g`

C

`1.52 g`

D

`3.0 g`

Text Solution

Verified by Experts

The correct Answer is:
C
`1.0 g (CF_(2))_(n) = ((cancel(1 "mol" (CF_(2))_(n)))/(50 cancel(n) g (CF_(2))_(n)) ((4 cancel(n) cancel("mol" CoF_(3)))/(cancel("mol"(CF_(2))_(n))))`
`((1 "mol" F_(2))/(2 "mol" cancel(CoF_(3)))) ((38 g F_(2))/("mol" F_(2)))`
`implies 1 xx (1)/(50) xx (4)/(1) xx (1)/(2) xx (38)/(1) implies 1.52 g F_(2)`
(note for `n` cancels)
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