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Q. What is Pairing energy explain?
Pairing energy, P, depends mainly on the electronic distribution of the central metal ion and its value can be obtained from the atomic spectra of the element. The D0 obtained from the molecular spectra of the complex. It depends on the metal ion, ligand and the geometry of the complex. Once these two values are known for any complex, you will know whether it will be high spin or low spin and you will also be able to calculate the CFSE. Table 14.6 gives the pairing energy values ford to d7 ions of first row transition elements as well as values for a few complexes. In dl,d 2, d3, d8. d9 and dl0 systems only one configuration each is possible.
Synthetic element compounds
Q. Explain Ligand field theory? The bond approach, though not as perfect, is more useful. Here we do all the calculations based on crystal field theory. The differences between
Write down the complete names and the commonly used abbreviations of the molecules A and B. a) Illustrate the line bond structures of the reactive moieties of these molecules i
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1. Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42- ..Express your answers as ions separated by a comma. 2.Enter the expression 147N+a, wher
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Write a reaction for which the enthalpy change will be (delta H) for solid aluminum oxide.
Q. This 16-part problem illustrates the use of experimental data from bomb calorimetry and other sources, combined with thermodynamic relations derived in this and earlier chapters
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