Question

Propose a plausible mechanism for the reaction f2 + 2clo2 → 2fclo2 given that the rate law for the reaction is rate = k[f2][clo2]. click in the answer box to activate the palette. do not include states of matter.

Answer 1

The given reaction is:

F2 + ClO2 → 2FClO2

Rate = k[F2][ClO2]

Explanation:

The possible mechanism for this reaction can be broken down into two steps with the slow step being the rate determining step

Step 1:       F2 + ClO2 → FClO2 + F ----------- Slow

Step 2:      F + ClO2 → FClO2           ----------- Fast

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Overall:  F2 + 2ClO2 → 2FClO2

Rate = k[F2][ClO2]

 

Answer 2

Answer:

Step 1: slow dissociation of fluorine (controlling stage):

$F_2+ClO_2-->FClO_2+F^-$

Step 2: fast chlorine dioxide reaction with fluoride ions:

$F^-+ClO_2-->FClO_2$

Explanation:

Hello,

The undergoing chemical reaction:

$F_2+2ClO_2-->2FClO_2$

Could be attained via two steps forming the required plausible mechanism with the given reaction rate:

Step 1: slow dissociation of fluorine (controlling stage):

$F_2+ClO_2-->FClO_2+F^-$

Step 2: fast chlorine dioxide reaction with fluoride ions:

$F^-+ClO_2-->FClO_2$

In this case, it is necessary for the fluorine to be dissociated to promote the formation of the two $FClO_2$ molecules and its consequent simplification as the formed fluorine ions act as intermediates, thus, the overall reaction turn out into:

$F_2+2ClO_2-->2FClO_2$

Best regards.