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11-01-2024
Chemistry

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What is the CEC of a soil that contains 10% clay. The clay fraction is composed of 50% smectite (CEC=100) and 50% kaolinite (CEC=10)?

A. 55 cmolc/kg

B. 5.5 cmol/kg

C. 10 cmolc/kg

D. None of the listed answers.

E. 68 cmolc/kg

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