Thank you for your quick reply!
Confirming the equation is Mg2+ (aq) + calcium complex <-> Ca2+ (aq) + magnesium complex?
The adding of Mg2+ would reduce the amount of complexed Ca2+ as the equilibrium favours the product side, thus the concentration of free Ca2+ ions will increase? How can I...
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Summary:: Requesting help!
Mg2+ (aq) is also likely to form a complex with the ligand or ligands in your chosen complex. Show how the formation of the Mg2+ complex will affect the concentration of Ca2+ (aq).
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