7. The Fe+ ion present in acid mine drainage is colorless and surrounded 2 points
by water molecules. If phenanthroline (Phe) is added, the solution turns
orange as a colored complex is formed according to the equation
(Fe3+xH2O) + Phe <--> (Fe3+xPhe) + H20. The color is commonly used
as an indicator of the Fe+ ion concentration. What would an increase in
color from light to dark orange indicate in this system?
a. addition of water to the system
O
b. an increase in the rate of the reverse reaction
O
c. an applied stress that shifted the equilibrium to favor the forward reaction
d. an applied stress that shifted the equilibrium to favor the reverse reaction
Answers: 1
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7. The Fe+ ion present in acid mine drainage is colorless and surrounded 2 points
by water molecul...
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