If You Wanted to Reduce the Percentage Sodium Saturation from 30

question 19

Multiple Choice

If you wanted to reduce the percentage sodium saturation from 30% to 5% in a sodic soil with a CEC of 20 cmol_c/kg,how many cmol_c's of CaSO₄ would need to react with 1 kg of this soil?

• A)30
• B)20
• C)10
• D)5
• E)2

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