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    Preparation of iron (II) ethanedioate complex.

    So you have the iron (II) compound dissolved.
    Then you add solid 2 = hydrated ethanedioic acid.
    Stir until partly dissolved.


    What does hydrated mean? Why is it hydrated?
    Why only partly dissolved?
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    (Original post by ILoveUSA)
    Preparation of iron (II) ethanedioate complex.

    So you have the iron (II) compound dissolved.
    Then you add solid 2 = hydrated ethanedioic acid.
    Stir until partly dissolved.


    What does hydrated mean? Why is it hydrated?
    Why only partly dissolved?
    I can only answer your first question, but hydrated means that the ligands surrounding the Fe 2+ ions are water. Take hydrated copper sulphate as an example. [Cu(H2O)6]2+

    It has 6 water molecules present when dissolved in water. However it doesn't neccessarily have to be dissolved, as long as those ligands are present it is known as hydrated.
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    (Original post by ILoveUSA)
    Preparation of iron (II) ethanedioate complex.

    So you have the iron (II) compound dissolved.
    Then you add solid 2 = hydrated ethanedioic acid.
    Stir until partly dissolved.


    What does hydrated mean? Why is it hydrated?
    Why only partly dissolved?
    Hydrated because the ethandioic acid comes as the dihydrate, (COOH)2.2H2O

    I have no idea for the second part as regards experimental procedure. I can't imagine why! ...
 
 
 
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