Equivalent weight of iron
Solution
The equivalent weight of an element is calculated by dividing its atomic weight by its valence.
For iron (Fe), it has an atomic weight of approximately 56.
Iron can exist in two common oxidation states: Fe2+ and Fe3+.
So, the equivalent weight of iron can be either:
- For Fe2+ (Iron II), the equivalent weight is 56/2 = 28
- For Fe3+ (Iron III), the equivalent weight is 56/3 = approximately 18.67
So, the equivalent weight of iron can be either 28 or approximately 18.67, depending on its oxidation state.
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