Fe3+ ion was reduced to its amalgam from solutions that were 2.0 x 10 3 M Fe3+, 0.1 M KNO, Fe3+ + 3e + Hg Fe(Hg) Addition of Br ions forms a complex. E was shifted with each addition of the anion. The shifts in E,, were plotted against log[Br ]. The slope was found to be -0.021 with an intercept of -0.13. Calculate the formation constant (K) of the complex. O 2.7 x 107 3.9 x 10-6 O 1.9 x 10-5 O 5.4 x 104 O 4.8 x 1013

Fe3+ ion was reduced to its amalgam from solutions that were 2.0 x 10 3 M Fe3+, 0.1 M KNO, Fe3+ + 3e + Hg Fe(Hg) Addition of Br ions forms a complex. E was shifted with each addition of the anion. The shifts in E,, were plotted against log[Br ]. The slope was found to be -0.021 with an intercept of -0.13. Calculate the formation constant (K) of the complex. O 2.7 x 107 3.9 x 10-6 O 1.9 x 10-5 O 5.4 x 104 O 4.8 x 1013