Problem 5- Estimate the thickness of the diffuse double layer of an illite clay particle suspended in seawater assuming that the assumptions of the Gouy-Chapman theory of the double layer apply. The cation exchange capacity of the clay is 25 meq/100 g. There are 500 ppm of salt dissolved in the seawater, which may all be assumed to be NaCl for this analysis. The specific surface area of the clay is 80 m²/g. The exchangeable cation on the clay is sodium. Assume that the dielectric constant of the solution is 80 and that T= 15°C.

Problem 5- Estimate the thickness of the diffuse double layer of an illite clay particle suspended in seawater assuming that the assumptions of the Gouy-Chapman theory of the double layer apply. The cation exchange capacity of the clay is 25 meq/100 g. There are 500 ppm of salt dissolved in the seawater, which may all be assumed to be NaCl for this analysis. The specific surface area of the clay is 80 m²/g. The exchangeable cation on the clay is sodium. Assume that the dielectric constant of the solution is 80 and that T= 15°C.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Problem 5- Estimate the thickness of the diffuse double layer of an illite clay particle suspended in
seawater assuming that the assumptions of the Gouy-Chapman theory of the double layer apply. The cation
exchange capacity of the clay is 25 meq/100 g. There are 500 ppm of salt dissolved in the seawater, which
may all be assumed to be NaCl for this analysis. The specific surface area of the clay is 80 m² /g. The
exchangeable cation on the clay is sodium. Assume that the dielectric constant of the solution is 80 and that
T= 15°C.

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