O 46.7 % by weight N 1.7% by weight Molar mass 1900 daltons Is the DOM likely to

Question

O 46.7 % by weight N 1.7% by weight Molar mass 1900 daltons Is the DOM likely to be fulvic acid or humic acid? Explain your reasoning. Consider both the degradative and synthesis reaction series for the formation of various types of humic material. Can both theories be used to explain the relative amounts of carbon and oxygen in the three classes of HM as described in the text? In lake water containing 0.9 mmol L^-1 calcium and 12 mu g L^-1 fulvic acid, determine the fraction of the fulvic acid that is bound to calcium, assuming that this is the only metal present in a significant concentration. The pH of the water is 5.0. Note the electronic structure of cadmium (II) and indicate the group (type A, borderline, or type B) in which it should be placed. Predict the principal inorganic forms of the element in fresh and sea water under both oxidizing and reducing conditions.

Explanation / Answer

7. Cadmium Cd (II) are placed in IIB group of the periodic table as because it is having an electronic configuration of nd10 and nd10 (n+1)s2 type of electronic configuration and it can be given as

48Cd - 1s22s22p63s23p63d104s24p64d105s2 or [Kr]4d105s2

The possible inorganic forms of the Cadmium in fresh and sea water under both oxidizing and reducing conditions are

Metal

Oxidizing Conditions

Reducing Conditions

Cadmium (Cd)

CdCO3

CdS

Metal

Oxidizing Conditions

Reducing Conditions

Cadmium (Cd)

CdCO3

CdS

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.