The data shown below are Fe(II) concentrations observed at two different depths over an incubation period. They illustrate Fe(II) oxidation in the sediments that were incubated. Time (d) Fe(II) (mM) 0 cm Fe(II) (mM) 45 cm 0.00 13.63 7.39 4.00 2.71 8.04 7.00 0.40 6.97 11.00 0.05 3.93 14.00 0.37 1.66 21.00 0.43 0.59 28.00 0.28 0.37 a) Please calculate the first-order rate constants for Fe(II) oxidation at those two depths. g) please provide the half life for dissolved Fe(II).

The data shown below are Fe(II) concentrations observed at two different depths over an incubation period. They illustrate Fe(II) oxidation in the sediments that were incubated. Time (d) Fe(II) (mM) 0 cm Fe(II) (mM) 45 cm 0.00 13.63 7.39 4.00 2.71 8.04 7.00 0.40 6.97 11.00 0.05 3.93 14.00 0.37 1.66 21.00 0.43 0.59 28.00 0.28 0.37 a) Please calculate the first-order rate constants for Fe(II) oxidation at those two depths. g) please provide the half life for dissolved Fe(II).

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter16: Reaction Rates

Section: Chapter Questions

Problem 67A

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