Spectrophotometric Determination of the Ligand/Metal Ratio and Kf in a Complex Ion

Objectives: Three methods of spectrophotometric techniques were used in this experiment to determine the ligand: mole ratio for coordinate compounds in solution. The three methods used included the Mole Ratio Method, the Slope Ratio Method, and Job¡¯s Method of Continuous Variation. Job¡¯s Method was used to determine the stability constant, Kf, for the reaction. The Slope Ratio Method was used to determine the molar absorptivity, ¦Å, for the ligand-metal complex.

Introduction: Transition metals form coordinate covalent bonds with Lewis bases to make coordination complexes. The anion or neutral compound reacting with the metal are called ligands. A general reaction for the formation of the complex follows:



One of the characteristics of transition metal complexes is that they absorb light in the visible region of the spectrum. The instrument used for analysis is a......

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Title: Spectrophotometric Determination Of The Ligand/Metal Ratio And Kf In A Complex Ion
Approximate Word Count: 1624
Approximate Pages: 7 (250 words per double-spaced page)

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   Spectrophotometric Determination of the Ligand/Metal Ratio and Kf in a Complex
   Ion. Spectrophotometric Determination of the Ligand ... ...