Question

The composition of a sample of wustite is Fe0.93 O. What percentage of the iron is present in the form of  Fe III?

Solution

Correct option is

15.05%

 

From the valency of Fe (II) and Fe (III), it is clear that three Fe (II) ions will be replaced by two Fe (III) causing a loss of one iron ion. Total loss of iron from one molecule of FeO = 1 – 0.93 = 0.07

Hence, total Fe(III) present in one molecule of  

                  FeO = 2 × 0.07 = 0.14

Total number of Fe (II) and Fe (III) present in one molecule of

                  FeO = 0.93

Hence, percentage of Fe (III) = 

SIMILAR QUESTIONS

Q1

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Q2

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Q3

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Q4

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Q5

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Q6

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Q7

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Q8

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Q9

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Q10

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