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COMPLEX ION FORMATION: NH3(LIGAND) ADDED TO CuSO4<br />
Copper Sulfate And Ammonium Hydroxide<br />
The Cu2+ ion in the CuSO4(aq) acts as a Lewis Acid.  The addition of the Ligand (NH3)2- (middle) begins the conversion of the pale blue [Cu(H2O)4]2+ ion (left) to the deep blue [Cu(NH3)4]2+ ion (right).

Fphoto-44999806D-3LS.jpg

COMPLEX ION FORMATION: NH3(LIGAND) ADDED TO CuSO4
Copper Sulfate And Ammonium Hydroxide
The Cu2+ ion in the CuSO4(aq) acts as a Lewis Acid. The addition of the Ligand (NH3)2- (middle) begins the conversion of the pale blue [Cu(H2O)4]2+ ion (left) to the deep blue [Cu(NH3)4]2+ ion (right).

Copyright:© 1998 Larry Stepanowicz - Fundamental Photographs

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Larry Stepanowicz