Hydrolytic Behavior of Ions

• Saber El-Sayed Mansour almismary

  Department of Chemistry - Faculty of Science - Omar Al-Mukhtar University, Al-Bayda - Libya

  Author

Hydrolysis of doubly and tribly – charged ions of the transition metal chorides, sulphates, and nitrates was studied potentiometrically with a glass – calomel electrode system at 25°C, Without the addition of any supporting electrolytes . The sequences of the changes in acidity of these aqueous solutions have been examined as a function of the degree of hydration and thermodynamic properties of the cations and the anions. . The results of the studies on the state of ions in aqueous solutions at 25°C are surveyed, and the hydration, hydrolysis, and polymerisation, and complex formation processes involving the ions are discussed as a function of concentrations of its compounds, the pH of the medium, and the nature of the cations and anions. In general, these results are in qualitative agreement with those expected on the basis of a quantum – mechanical calculations of the dependence of the hydration energy on the charge of the cations and some other theoretical studies.

1. Saber El-Sayed Mansour almismary, Department of Chemistry - Faculty of Science - Omar Al-Mukhtar University, Al-Bayda - Libya

   Hydrolysis of doubly and tribly – charged ions of the transition metal chorides, sulphates, and nitrates was studied potentiometrically with a glass – calomel electrode system at 25°C, Without the addition of any supporting electrolytes . The sequences of the changes in acidity of these aqueous solutions have been examined as a function of the degree of hydration and thermodynamic properties of the cations and the anions. . The results of the studies on the state of ions in aqueous solutions at 25°C are surveyed, and the hydration, hydrolysis, and polymerisation, and complex formation processes involving the ions are discussed as a function of concentrations of its compounds, the pH of the medium, and the nature of the cations and anions. In general, these results are in qualitative agreement with those expected on the basis of a quantum – mechanical calculations of the dependence of the hydration energy on the charge of the cations and some other theoretical studies.

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