Ano123
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So if you have say iron(II) sulphate which can obviously be written in a convenient way  \text{FeSO}_4 . I'm aware that this can be in a hydrated form (most commonly)  \text{FeSO}_4 \cdot 7 \text{H}_2 \text{O} .
I have a few questions. Firstly what is the hydrated ion above called (how do you systematically name it) and what is its structure like?
Is it like  \left [ \text{Fe(H}_2 \text{O} )_6 \right ]^{2+} with the other water outside of the main complex (sulphate obviously ionically bonded) or is it something else (maybe something to do with the different coordination spheres)?
Thank you
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Ano123
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Anyone have any knowledge of this and can help me understand it a bit more?
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carrotstar
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(Original post by Ano123)
Anyone have any knowledge of this and can help me understand it a bit more?
Gimme 5.. I'm looking through notes from the first year of my degree because I'm sure I didn't do that at A-level!
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carrotstar
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(Original post by Ano123)
So if you have say iron(II) sulphate which can obviously be written in a convenient way  \text{FeSO}_4 . I'm aware that this can be in a hydrated form (most commonly)  \text{FeSO}_4 \cdot 7 \text{H}_2 \text{O} .
I have a few questions. Firstly what is the hydrated ion above called (how do you systematically name it) and what is its structure like?
Is it like  \left [ \text{Fe(H}_2 \text{O} )_6 \right ]^{2+} with the other water outside of the main complex (sulphate obviously ionically bonded) or is it something else (maybe something to do with the different coordination spheres)?
Thank you
I think it might be ferrous sulphatoheptahydrate
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charco
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(Original post by Ano123)
So if you have say iron(II) sulphate which can obviously be written in a convenient way  \text{FeSO}_4 . I'm aware that this can be in a hydrated form (most commonly)  \text{FeSO}_4 \cdot 7 \text{H}_2 \text{O} .
I have a few questions. Firstly what is the hydrated ion above called (how do you systematically name it) and what is its structure like?
Is it like  \left [ \text{Fe(H}_2 \text{O} )_6 \right ]^{2+} with the other water outside of the main complex (sulphate obviously ionically bonded) or is it something else (maybe something to do with the different coordination spheres)?
Thank you
iron(II) sulfate heptahydrate

The iron will have an octahedral coordination sphere and the remaining water will form part of the crystal lattice along with the sulfate ion.

If you want the unit cell structure you probably need a book like Earnshaw and Greenwood's - Chemistry of the elements.

EDIT: No the above book does not have the crystal unit cell, only confirmation of the hexaaquairon(II) ion in the structure.
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