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Measurement of cation exchange capacity requires several experimental steps and calculations. One method is to add a concentrated solution of ammonium acetate to a soil sample in the lab and collect all the cations that are knocked off from CEC sites by the NH4*. Suppose the end result of this measurement process for a given soil is that the cations exchanged by NH4+ were 6.3 cmol Ca2+/kg soil, 3.8 cmol Mg2+/kg soil, 3.3 cmol K*/kg soil, and 1.6 cmol Al3+/kg soil. If so, then what is the CEC of this soil in cmol(+)/kg soil?

Measurement of cation exchange capacity requires several experimental steps and calculations. One method is to add a concentrated solution of ammonium acetate to a soil sample in the lab and collect all the cations that are knocked off from CEC sites by the NH4*. Suppose the end result of this measurement process for a given soil is that the cations exchanged by NH4+ were 6.3 cmol Ca2+/kg soil, 3.8 cmol Mg2+/kg soil, 3.3 cmol K*/kg soil, and 1.6 cmol Al3+/kg soil. If so, then what is the CEC of this soil in cmol(+)/kg soil?

Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
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Measurement of cation exchange capacity requires several experimental steps and calculations. One method is to add a concentrated solution of ammonium acetate to a soil sample in the lab and collect all the cations that are knocked off from CEC sites by the NH4*. Suppose the end result of this measurement process for a given soil is that the cations exchanged by NH4* were 6.3 cmol Ca2+/kg soil, 3.8 cmol Mg2+/kg soil, 3.3 cmol K*/kg soil, and 1.6 cmol Al3+/kg soil. If so, then what is the CEC of this soil in cmol(+)/kg soil?
Transcribed Image Text:Measurement of cation exchange capacity requires several experimental steps and calculations. One method is to add a concentrated solution of ammonium acetate to a soil sample in the lab and collect all the cations that are knocked off from CEC sites by the NH4*. Suppose the end result of this measurement process for a given soil is that the cations exchanged by NH4* were 6.3 cmol Ca2+/kg soil, 3.8 cmol Mg2+/kg soil, 3.3 cmol K*/kg soil, and 1.6 cmol Al3+/kg soil. If so, then what is the CEC of this soil in cmol(+)/kg soil?
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