Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Illustrate crystal field splitting in octahedral complexes?
Initially in a free ion state (I) all the orbitals are in degenerate state. In state (11), all the five orbitals are raised m energy when surrounded uniformly by negative charges. State (111) shows how the degeneracy is removed in an octahedral field. The set of lower three orbitals equal in energy in an octahedral field is given symbols t2g while the upper two equal-energy levels are denoted by e,. The difference in energy between t2g and eg sets is given by a symbol D0, (delta octahedral). Comparing states (11) and (III), we find that the only difference between them is that instead of uniformly distributing the six negative charges (as shown in state II), we have put the six charges at the comers of a regular octahedron. Just by the redistribution of charges the total energy of the system should not change. However, at the same time we say that in state (111). the t2g set of orbitals will be lower in energy and the eg set will be higher. The two facts can be reconciled if the total lowering of 12 set is equal to the total raise in energy of eg orbitals which would give no resultant change in energy as compared to state (11). Of the five orbitals, three are lowered in energy and two are raised in energy. Thus each orbitals is lowered in energy by 2/5D0, causing a total lowering of 615 & the other two orbitals are each raised in energy by 3/5D0, causing a total raise of 6/5 D0,. The sum total of lowering and raise, being equal and opposite, turns out to be zero or no change. The D0, values are generally in the range of 100-250 kJ mol-1.
Carbon And its Compounds Carbon is a typical non-metal present in earth's crust to the extent of 0,02% by mass. All living organisms contain carbon and hydrogen as their ess
why is filtration in soil and water a slow process and explain the colour change in the filtrate
The free energy change for the formation of oxide of aluminium is highly negative ( -1000 to -1100) so , it can easily reduce any metal oxide abve it easily in ellingham diamgram a
The following information is available for the extraction of Cu2+ into CCl4 with dithizone: KD,c = 7 ´ 104; b = 5 ´ 1022; Ka,HL = 3 ´ 10–5; KD,HL = 1.1 ´ 104; n = 2. What is the ex
given the mobility of hydrogen ion and cl to be 0.0000003623 and 0.0000000791 respectively. calculate the transference number of proton in the 0.001M solution of hydrocholric acid
does adding hcl to acetic acid and sodium acetate = more acid consumption r spodium consupmtion?>
Various methods are employed to calculate the rate constant. The method to be adopted and the proper selection depend on the experimental condition and nature of reactants and pr
what are the physical properties of acetic acid?
A number of ionic compounds e.g.Agcl , caF 2 BaSo 4 are insoluble in water. This is because: (1) Ionic compounds do not dissolve in water (2) Water has a high dielectri
Volumetric method for acids and bases - chemical methods Molecular mass of an acid can be ascertained by dissolving a known mass of the acid in water and titrating the solution
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd