A soil has a maximum potential cation exchange capacity of 30 cmolc/kg and has a 50% acid saturation.If you want to decrease the percentage acid saturation to 10%,how many cmolc of calcium would it take to replace the exchangeable acid cations per kg of soil? Assume all the calcium exchanged with aluminum.
A) 30
B) 40
C) 6
D) 12
E) 5
Correct Answer:
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