The Law Posted January 15, 2010 Report Share Posted January 15, 2010 Which of the following cations is the strongest in aq solutions? A) Fe 3+ Ca 2+ C) Cu 2+ D) Zn 2+ Can someone please explain the concept here and why the chemistry is this way? Link to comment Share on other sites More sharing options...
iDent Posted January 16, 2010 Report Share Posted January 16, 2010 Which one is the answer? Link to comment Share on other sites More sharing options...
The Ace of Spades Posted January 16, 2010 Report Share Posted January 16, 2010 Fe3+. It has the highest charge. Assuming that all ions are present in equal concentrations, it will have the highest ionic strength. Ionic strength is the concentration of the ion times the square of its charge. Link to comment Share on other sites More sharing options...
The Law Posted January 16, 2010 Author Report Share Posted January 16, 2010 Ah, I should have realized that on the onset... the defintion of acids: -give off H+ OR -accept a pair of electrons Obviously, Fe 3+ is the one most likely to accept a pair of electrons. The way to consider it, I suppose is look for the smallest atom with the most charge? Link to comment Share on other sites More sharing options...
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