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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 iron is present in the form of `Fe(III)`?

A

13.05

B

14.05

C

15.05

D

16.05

Text Solution

Verified by Experts

The correct Answer is:
C
O.N. of Fe is wustite is `= ( 200)/( 93) = 2.15`
It is an intermediate value in between Fe(II) & Fe(III)
Let % of Fe(III) be a, then
`2 xx ( 100 - a) + 3 xx a = 2.15 xx 100`
`a = 15.05`
`:.` % of Fe(III) = 15.05 %
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