The composition of a sample of Wustite is \( \mathrm{Fe}_{0.93} \mathrm{O} \). What is the perce...

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The composition of a sample of Wustite is \( \mathrm{Fe}_{0.93} \mathrm{O} \). What is the percentage of iron present as \( \mathrm{Fe}^{3+} \) in total iron?
(a) \( 15.05 \% \)
(b) \( 25 \% \)
(c) \( 35 \% \)
(d) \( 45 \% \)
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