Answer to Question #126390 in General Chemistry for MANISH

Question

Using the table of average cmol+c kg-1 clay below, estimate the CEC (cmol+c kg-1 soil) of a soil with 42% clay composed of the following clay minerals: 24% kaolinite, 18% vermiculite, 26% smectite and 10% illite.

Mineral

CEC (cmolc/kg)

Range

Avg

Vermiculite

150 – 200

175

Smectite

80 – 120

100

Illite

20 – 40

30

Kaolinite

5 – 15

10

Organic matter

150 – 500

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a.6.3

b.26.4

c.15.7

d. 36.6

e.19.1

Answer 1

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