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Sketch the expected charge versus pH curve for humic substances. How does this differ from a pure compound with one functional group such as acetic

Sketch the expected charge versus pH curve for humic substances. How does this differ from a pure compound with one functional group such as acetic acid? You should make reference to the key functional groups responsible for the charge.

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Answer Acidic functional groups attached to the humic molecules especially carboxylic COOH and phenolicOH groups provide this buffering capacity as shown in Figure 14 The COOH groups dissociate in aci... blur-text-image

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