The kitty cat soil series series is composed of 2% organic matter (200 cmolc/kg) and 10% clay. The clay fraction is composed of the following minerals (CEC reported @ pH 7): 20 % smectite 5 % kaolinite 45 % mica 15 % vermiculite 15 % Fe/Al oxide Based on the organic matter content and clay mineralogy, estimate the CEC, in cmolc/kg of soil, of this soil at pH 7. Please show your work. Colloid Type CEC cmolc/kg pH = 7 Main type of charge OM 200 pH dependent Vermiculite 150 Permanent Smectite 100 Permanent Mica 30 Permanent Chlorite 30 Permanent Kaolinite 8 pH dependent Fe/Al oxides +5 pH dependen

The kitty cat soil series series is composed of 2% organic matter (200 cmolc/kg) and 10% clay. The clay fraction is composed of the following minerals (CEC reported @ pH 7): 20 % smectite 5 % kaolinite 45 % mica 15 % vermiculite 15 % Fe/Al oxide Based on the organic matter content and clay mineralogy, estimate the CEC, in cmolc/kg of soil, of this soil at pH 7. Please show your work. Colloid Type CEC cmolc/kg pH = 7 Main type of charge OM 200 pH dependent Vermiculite 150 Permanent Smectite 100 Permanent Mica 30 Permanent Chlorite 30 Permanent Kaolinite 8 pH dependent Fe/Al oxides +5 pH dependen

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter4: Plasticity And Structure Of Soil

Section: Chapter Questions

Problem 4.2CTP

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Colloid Type	CEC cmol_c/kg pH = 7	Main type of charge
OM	200	pH dependent
Vermiculite	150	Permanent
Smectite	100	Permanent
Mica	30	Permanent
Chlorite	30	Permanent
Kaolinite	8	pH dependent
Fe/Al oxides	+5	pH dependent