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Please sir explain this question. I just don't understand here who is residue here oxygen qhich ia leaving or Fe3O4 which is in solid state. Q-2g sample contain mixture of SiO 2 and Fe 2 O 3 ,on very strong heating leave a residue weighing 1.96g.The reaction responsible for loss of wt. is Fe 2 O 3 (s)------------- Fe 3 O 4 (s) +O 2 (g)(unbalanced equation).What is the percentage by mass of SiO 2 in original sample?

Please sir explain this question. I just don't understand here who is residue here oxygen qhich ia leaving or Fe3O4 which is in solid state.
Q-2g sample contain mixture of SiO2 and Fe2O3,on very strong heating leave a residue weighing 1.96g.The reaction responsible for loss of wt. is
Fe2O3(s)------------- Fe3O4(s) +O2(g)(unbalanced equation).What is the percentage by mass of SiO2 in original sample?

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
I am getting my answer as 40% 
 
please let me know if this is correct then I will share my solution.
 
Regards
Arun (askIITians forum expert)

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