We leached 200 g of our soil with 500 mL of NH4CI. The collected solution contained: 320 mg L-1 Ca2+ 168 mg L-1 Mg2+ -1 234 mg L-¹ K+ -1 8 mg L-¹ H+ 144 mg L-1 A13+

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Chapter21: Chemistry Of The Main-group Elements
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We leached 200 g of our soil with 500 mL of
NH4CI. The collected solution contained:
320 mg L-1
Ca2+
168 mg L-1
Mg2+
-1
234 mg L-¹ K+
8 mg L-1 H+
144 mg L-1
A13+
Transcribed Image Text:We leached 200 g of our soil with 500 mL of NH4CI. The collected solution contained: 320 mg L-1 Ca2+ 168 mg L-1 Mg2+ -1 234 mg L-¹ K+ 8 mg L-1 H+ 144 mg L-1 A13+
What is the CEC for this soil?
Molecular weights of the ions are:
40 g Ca²+
mol-1
24 g Mg2+
mol-1
39 g K+ mol-1
1 g Ht mol-1
27 g Al³+ mol
1
Transcribed Image Text:What is the CEC for this soil? Molecular weights of the ions are: 40 g Ca²+ mol-1 24 g Mg2+ mol-1 39 g K+ mol-1 1 g Ht mol-1 27 g Al³+ mol 1
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Which CEC measurement did this calculation provide?
CEC resulting from permanent charge on clays
Total CEC at field pH levels
Potential (maximum) CEC
Transcribed Image Text:Which CEC measurement did this calculation provide? CEC resulting from permanent charge on clays Total CEC at field pH levels Potential (maximum) CEC
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