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IRON3+ & THIOCYANATE EQUILIBRIUM SHIFT: ION COLORS<br />
Solution Shifts to Yellow With Addition of HgCl2<br />
(yellow) Fe 3+(aq) + (colorless) SCN-(aq)  (red) FeNCS 2+(aq) Addition of HgCl2 to original FeNCS 2+ solution decreases red [FeNCS 2+] shifting equilibrium towards colorless [SCN-].

Fphoto-37849408E-2RM.jpg

IRON3+ & THIOCYANATE EQUILIBRIUM SHIFT: ION COLORS
Solution Shifts to Yellow With Addition of HgCl2
(yellow) Fe 3+(aq) + (colorless) SCN-(aq) (red) FeNCS 2+(aq) Addition of HgCl2 to original FeNCS 2+ solution decreases red [FeNCS 2+] shifting equilibrium towards colorless [SCN-].

Copyright:© 1994 Richard Megna - Fundamental Photographs

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Richard Megna