An iron sample contains 18% Fe3O4. What is the amount so that it is precipitated as Fe2O3 which weighs 0.40 gram?
The options are as follows:- 
1. 2.15 g
2. 1.075 g
3. 4.30 g
4. 2.01 g

Asked by Pragnya Kar | 3rd Oct, 2014, 11:44: PM

Expert Answer:

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In the given question- An iron sample contains 18% Fe3O4. What is the amount so that it is precipitated as Fe2O3 which weighs 0.40 gram?
 
The question seems incomplete. Did you mean - What is the amount of iron........in Fe2O3?
 
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Answered by Hanisha Vyas | 6th Oct, 2014, 12:01: PM