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Weight of oxygen in Fe2O3 and FeO is in the simple ratio for the same amount of iron is :
  • a)
    3 : 2
  • b)
    1 : 2
  • c)
    2 : 1
  • d)
    3 : 1
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Weight of oxygen in Fe2O3and FeO is in the simple ratio for the same a...
Molar mass of Fe = 56 gm
Molar mass of O = 16 gm
In Fe2O3, mass of Fe = 56 × 2 = 112
Mass of O in Fe2O3 = 48
In FeO, mass of Fe = 56. Since we need to have the same mass of Fe, we need to  take 2 moles of FeO.
Mass of O in 2 moles of FeO = 16 2 =32
Therefore, ratio of mass of O in Fe2O3 and FeO = 48/32 = 3:2
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Weight of oxygen in Fe2O3and FeO is in the simple ratio for the same a...
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Weight of oxygen in Fe2O3and FeO is in the simple ratio for the same amount of iron is :a)3 : 2b)1 : 2c)2 : 1d)3 : 1Correct answer is option 'A'. Can you explain this answer?
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