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

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