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The composition of a sample of Wustite i...

The composition of a sample of Wustite is `Fe_(0.93)O_(1.00)`. What percentage of the iron is present in the form of `Fe (III)`?

A

`15.05`

B

`84.95`

C

`10.2`

D

`89.8`

Text Solution

Verified by Experts

The correct Answer is:
A
Oxidation number of `Fe` in `Fe_(0.93)O_(1.0)`
`=(200)/(93)=2.15`
Let `a%` be in form of `Fe(III)` and thus
`((+3xxa)+[+2(100-a)])/(100)=2.15`
`:. a=15.05`
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