CHM324: ADVANCE STUDY ON INORGANIC CHEMISTRY

By | October 1, 2019

CHM 324 INORGANIC CHEMISTRY (COURSE OUTLINE)
  • Comparative chemistry of the following elements (a) Ga, In, Ti, (b) Ge, Sn, Pb, (c) As, Sb, Bi and (d) Se, Te, Po.
  • Chemistry of transition metals, lanthanides and actinides. Ligand and Crystal field theories.
  • Introduction to radio-chemistry.
  • Role of metals in biochemical systems

MATERIAL ONE : WHAT YOU SHOULD KNOW

PART A

ADVANCE STUDY ON INORGANIC CHEMISTRY

-Define the following terms:
.Background radiation
. radioactive decay
. K capture
-The half life of Sr is 281 years. How long will it take a 10.0g sample of Sr to be reduced to 0.100 g?
– In a tabular form, state four properties of alpha, beta and gamma rays
– Using only a reaction scheme, outline in details, the chemistry of Gallium
-Using equations ONI.Y, give the synthesis of any organometallic compound of the following Group IVB elements;
.Organogermanium
. Organotin
. Organolead
-what is lanthanides contraction?
-State the differences between ambidentate and flexidentate ligands, Give 2 examples each Suggest why high coordination are not usual for first row d-block elements
-explain why polydentate ligands formed stable compounds with metal ions than monodentate ligands

– Define the following terms as applicable to coordination compounds:
.Coordinating groups
. Degeneracy
.orbital splitting
. Weak field
-Briefly explain the term “molecular compounds” as applicable to coordination chemistry?
-Mention two types of molecular compounds give an example of each.
-Suggest why high coordination are not usual for first row d-block elements.
-Explain why polydentate ligands formed stable compounds with metal ions than monodentate ligands
– Write short notes on the following theories of coordination compounds
. Atomic orbital theory
.Crystal field theory
. Ligand field theory
– Mention the two types of crystal field energy?
– State four applications of chelate compounds.
– Mention two types of stability of complex compounds
– What are the factors affecting stability of metal complexes?
-Differentiate between conformation and coordination isomeris─▒m.
– What is the similarity between ionization and hydrate isomerism?
– How would you distinguish between cis- and trans- isomer of [CrCl3(NH3)4]CI ?- Name the following compounds:
. [Mn Cl(CH3NH2)2 (H20)2]CI . [Cu(CN4.)4-
. [Zn(NH3)2(OH)SCN]Br2
.Co(ONO) (ox)2]NO3
. K4[PtCl4 ]
. [Fe(NO2)(NCS( Br)2]SO2
-Using specific examples, state the difference between nuclear reaction and chemical reactions
-What do you understand by the half-life period of a radioactive element? Show that half-life is independent of the amount of substance?
– A radioactive substance has a half-life period of 30 days. Calculate
. the radioactive disintegration constant
. average life period
. The time taken by % of the original number of atonms to disintegrate
. The time taken by 1/8 of the original number of atoms to remain unchanged.
– Calculate the time in which the activity of a sample of thorium reduces to 90% of its original value (Assume the half- life of thorium to be 1.4x 10 years)
-Distinguish between the main transition and inner transition elenents.
– Which is the most common oxidation state of the lanthanoids and how is it formed? Give its configuration.
– Using an appropriate flow chart, describe the extraction of Uranium from pitchblende.
-Using ONLY a reaction scheme, outline in details, the Chemistry of Gallium.
– Explain the terms Lanthanide and Actinide contraction
-Describe the general characteristics of lanthanide and actinide elements and bring out periodicity in their properties
– Why is the separation of the lanthanoids so difficult? List three (3) important methods used for the separation of lanthanoids metals.
– Using appropriate equations, give the synthesis of any organometallic compound of the following group IVB elements:

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. Organogermanium
. Organotin
. Organolead
– Write a concise note on the Complexation Behaviour of the inner transition elements
– Write out the chemical equations for the reactions of lanthanide elements with :
. water
. acids
. oxygen

 

MATERIAL ONE : WHAT YOU SHOULD KNOW

PART B

ADVANCE STUDY ON INORGANIC CHEMISTRY

-State three (3) differences between nuclear and chemical reactions
-In a tabular, State three (3) properties of each of the following:
.alpha particles
. Beta particles
.gamma rays
-How much time would it take for a sample of cobalt-60 to disintegrate to the extent that only 2.0
Percent remains? The disintegration constant is. 1 3 per year.
-Define the following terms as applicable to Radiochemistry
.radioactive
.mass defect
.binding energy
.half-life
.radioactive decay

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-The amount of carbon-14 in a piece of wood is found to be one-sixth of its amount in a fresh piece of wood. Calculate the age of old piece of wo0d.
-Explain what is meant by “Nuclear Isomerism”? Give an example and list 3 types of Radioactive decay series.
-Differentiate, between the following pairs:
.Crystal field splitting energy and ligand field stabilization energy
.ambi dentate and flexi dentate ligands
.stereoisomerism and structural isomerism
.strong field and weak field ligands

-State the assumptions of Crystal field theory?
-What are the disadvantages of Crystal field theory?
-Name the following coordination compounds:
.{Cu(en3)[Cr(CN)6}
.Na [Au(CN)2]
.(NH4, [Co(C204)
.{Co(NH3)(NO2) 3]ii) [Rb(NCS) (H2O)3]

-Differentiate between high spin and low spin complexes. Give an example of each
-Mention 4 factors that affect crystal field splitting
Discuss briefly with examples the different types of nuclear reactions, giving examples
-Show that nuclear reaction is a chain reaction
-State with specific examples important nuclear reactions caused by neutrons
-List 8 properties of d- block elements
-How do the d-block elements differ from f- block elements?
– Calculate the crystal field stabilization energy for high and low-spin of, octahedral”- d’ complexes

 

 

 

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