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?
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.
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?
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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