Using the reaction below and mixture 1 volumes, a student mixes Fe(NO3)3 with KSCN, and calculated their equilibrium concentrations at 5.71 × 104 M and 3.71 × 104 M, respectively. Using the colorimeter, she obtains the net absorbance of mixture 1 at 0.090. The calibration curve for the equilibrium reaction is y =2635 x + 0.0140. Fe3+ (aq) + SCN- (aq)= FESCN²+ (aq) a) Using the calibration curve, where y is equal to the absorbance [applying the Beer's Law: Absorbance = slope (concentration)], calculate the equilibrium concentration of FeSCN2+. b) Write the equilibrium expression. c) Calculate the Keg for the reaction. d) Identify if the reaction is product favored or reactant favored? Briefly explain your answers.

Using the reaction below and mixture 1 volumes, a student mixes Fe(NO3)3 with KSCN, and calculated their equilibrium concentrations at 5.71 × 104 M and 3.71 × 104 M, respectively. Using the colorimeter, she obtains the net absorbance of mixture 1 at 0.090. The calibration curve for the equilibrium reaction is y =2635 x + 0.0140. Fe3+ (aq) + SCN- (aq)= FESCN²+ (aq) a) Using the calibration curve, where y is equal to the absorbance [applying the Beer's Law: Absorbance = slope (concentration)], calculate the equilibrium concentration of FeSCN2+. b) Write the equilibrium expression. c) Calculate the Keg for the reaction. d) Identify if the reaction is product favored or reactant favored? Briefly explain your answers.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.BCP

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