Q: The International Humic Substances Society IHSS supplies reference specimens to researchers.
The International Humic Substances Society IHSS supplies reference specimens to researchers. Using IHSS elemental composition and acidic functional group data, determine the oxygen mole-fraction attri...
See AnswerQ: Table 1.2 in The Chemical Composition of Soils (Helmke
Table 1.2 in The Chemical Composition of Soils (Helmke, 2000) lists the geometric mean Cu content of world soils: 20 mg kg−1. The soil organic carbon content of the Summit Hill (Chri...
See AnswerQ: Table 1.4 in The Chemical Composition of Soils (Helmke
Table 1.4 in The Chemical Composition of Soils (Helmke, 2000) lists the geometric mean Cu content of U.S. peat soils (Histosols): 193 mg kg−1. The organic matter content of peat soil...
See AnswerQ: The International Humic Substances Society supplies reference samples to researchers (IHSS
The International Humic Substances Society supplies reference samples to researchers (IHSS Products link at the website www.ihss.gatech.edu/). The Chemical Properties menu leads you to data for Elemen...
See AnswerQ: The Upper Poplar Creek, a mercury-polluted stream located on
The Upper Poplar Creek, a mercury-polluted stream located on the U.S. Department of Energy Oak Ridge reservation, has as dissolve organic carbon content of DOC = 3 mg • dm−3. This aquatic organic matt...
See AnswerQ: Almendros et al. (1991) measured the nitrogen-15
Almendros et al. (1991) measured the nitrogen-15 nuclear magnetic resonance NMR spectrum of a compost material containing 8% nitrogen by weight. From the NMR spectrum, Almendros et al. (1991) estimate...
See AnswerQ: The International Humic Substances Society supplies reference samples to researchers (IHSS
The International Humic Substances Society supplies reference samples to researchers (IHSS Products link at the website www.ihss.gatech.edu/). The Chemical Properties menu leads you to data for Elemen...
See AnswerQ: The International Humic Substances Society supplies reference samples to researchers (IHSS
The International Humic Substances Society supplies reference samples to researchers (IHSS Products link at the website www.ihss.gatech.edu/). The Chemical Properties link leads you to data on the Ele...
See AnswerQ: The Earth’s crust is depleted of certain elements relative to the overall
The Earth’s crust is depleted of certain elements relative to the overall composition of the Solar System. Explain why the following elements (helium, neon, argon, krypton, xenon, silver, gold, platin...
See AnswerQ: Salibia et al. (2002) reports the following composition of
Salibia et al. (2002) reports the following composition of corncob lignin: C9H9.84O3.33(OCH3)0.38. Determine the mean carbon oxidation state OS(C) and carbon reduction ΓC of corncob lignin.
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