Select the shift in the reaction that is indicated by the change in color you observed. Then explain this change. Recall the reaction is as follows: Fe3+(aq)+NCS−(aq)⇌FeNCS2+(aq) Observation: When Hg(NO3)2 was added, the Fe3+–NCS–FeNCS2+ equilibrium mixture turned colorless or yellow.     When Hg(NO3)2 was added, the reaction shifted...

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter17: Complexation And Precipitation Reactions And Titrations
Section: Chapter Questions
Problem 17.11QAP
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Select the shift in the reaction that is indicated by the change in color you observed. Then explain this change. Recall the reaction is as follows:

Fe3+(aq)+NCS−(aq)⇌FeNCS2+(aq)

Observation: When Hg(NO3)2 was added, the Fe3+–NCS–FeNCS2+ equilibrium mixture turned colorless or yellow.

 
 
When Hg(NO3)2 was added, the reaction shifted...
Choose...to the reactants or to the products
 

Account for the effect of adding Hg(NO3)2, including a chemical reaction.

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