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The equivalent mass of iron in ferous ox...

The equivalent mass of iron in ferous oxide is 28. calculate its equivalent mass in ferric oxide.

Text Solution

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Considering ferrous oxide (where valency of iron=2),
atomic mass of iron,`A=ExxV=28xx2=56`
Now, considering ferric oxide (where valency of iron=3),
equivalent mass of iron, `E=A//V=56//3=18.67`.
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