Homework Answers
Paramagnetic substances are weakly magnetized in an external magnetic field. The direction of the magnetization is in the same direction as the external magnetic field so they gain a net magnetization when we remove the paramagnetic substance from the field. The alignment of electrons is interrupted and the substance will lose its magnetic property. Therefore, paramagnetic substances are not permanent magnets. Some examples of these materials are Aluminium, iron oxide, titanium etc.
Just lie paramagnetism, in diamagnetism too the substances are magnetized in an external magnetic field. But diamagnetic solids are repelled in the field. The magnetic property effected in them is in the opposite direction of the external magnetic fields and thus have a repulsive force. Examples of diamagnetic materials are bismuth, antimony, copper, gold, quartz etc.
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6. [5%) What characterize a paramagnetic solid and a dia- magnetic solid? Give an example for...
[3] (a) Characterize solid, liquid and gases in terms of compressibility and fluidity. (Marks = 1) [3] (b) What distinguished element from a compound? Give one example for each. (Marks = 1) 3] (a) Cha...
[3] (a) Characterize solid,
liquid and gases in terms of compressibility and fluidity. (Marks =
1) [3] (b) What distinguished element from a compound? Give one
example for each. (Marks = 1)
3] (a) Characterize solid, liquid and gases in terms of compressibility and fluidity. (Marks 1) 31 (b) What distinguished element from a compound? Give one example for each. (Marks-)
3] (a) Characterize solid, liquid and gases in terms of compressibility and fluidity. (Marks 1) 31 (b) What distinguished...
Chromium(IV) oxide is used in making magnetic recording tapes because of its paramagnetic properties. a) Give...
Chromium(IV) oxide is used in making magnetic recording tapes because of its paramagnetic properties. a) Give the electron configuration of Cr and determine the number of unpaired electrons on each chromium atom. b) Suggest an ion from the same row of the periodic table that might be even more paramagnetic.
Magnetic properties (diamagnetic or paramagnetic behavior) of different chemicals are predicted b... Magnetic properties (diamagnetic or...
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give an example of a covalent solid that can undergo a solid-to-solid phase transition
give an example of a covalent solid that can undergo a solid-to-solid phase transition
5 Points) Draw the MO whether each molecule is paramagnetic or diamagnetic and why. Define HOMO...
5 Points) Draw the MO whether each molecule is paramagnetic or diamagnetic and why. Define HOMO and LUMO. What are the HOMO and LUMO for each molecule? diagrams for Li2 and 2. Give the bond order for each. State 6-
The energy of a magnetic moment in a magnetic field is . A certain paramagnetic salt contai...
The energy of a magnetic moment in a magnetic field is . A certain paramagnetic salt contains 1025 magnetic moments per m3. Each one has a value , due to the atom's spin. As the spin is 1/2, there only are two possible states and the magnetic moments can be parallel or antiparallel to the field. Each magnetic moment belongs to one distinguishable atom. A 1 cm3 sample of this salt is placed in a electromagnet producing a uniform magnetic...
3. (5 pts) The magnetic moment of a paramagnetic metal complex is measured as 3.8 UB...
3. (5 pts) The magnetic moment of a paramagnetic metal complex is measured as 3.8 UB at 25 °C and 2 UB at -150 °C. Which of the following is most likely true of this complex? (Select one answer. There is only one correct answer) a) It contains a Cu2+ ion surrounded by six pyridine ligands b) It contains an Fe2+ ion surrounded by six pyridine ligands c) It contains a Co2+ ion surrounded by two terpyridine ligands d) It...
For the mutation below, (a) characterize the mutation thoroughly, (b) give the amino acid sequence resulting...
For the mutation below, (a) characterize the mutation thoroughly, (b) give the amino acid sequence resulting from the mutated strand and, (c) state what effect the mutation may have on the function of the gene product Mutation 2: 3’ g t c A C A C G T T T A g a c g t t a a a c a t c G C G A A G T T T 5’ (a) characterize the mutation thoroughly (6...
Consider the coordination compound Caz[Co(CN)6]: i. ii. Give the systematic name of the compound. What is...
Consider the coordination compound Caz[Co(CN)6]: i. ii. Give the systematic name of the compound. What is the magnetic property of the complex (diamagnetic, strong or weakly paramagnetic)? (Use the appropriate d-orbital splitting diagram from the formula sheet to explain your answer) iii. Will the complex be a high-spin or low-spin complex?
Consider the coordination compound K[Cr(CN).] : (i) Give the systematic name of the compound. (ii) What is the magnetic...
Consider the coordination compound K[Cr(CN).] : (i) Give the systematic name of the compound. (ii) What is the magnetic property of the complex (diamagnetic, strong or weakly paramagnetic)? (Use the appropriate d-orbital splitting diagram from the formula sheet to explain your answer). (iii) If the three cyanide ligands are replaced by aqua ligands, what will be the charge on the resulting complex ion? Show your working.
[3] (a) Characterize solid,
liquid and gases in terms of compressibility and fluidity. (Marks =
1) [3] (b) What distinguished element from a compound? Give one
example for each. (Marks = 1)
3] (a) Characterize solid, liquid and gases in terms of compressibility and fluidity. (Marks 1) 31 (b) What distinguished element from a compound? Give one example for each. (Marks-)
3] (a) Characterize solid, liquid and gases in terms of compressibility and fluidity. (Marks 1) 31 (b) What distinguished...
Chromium(IV) oxide is used in making magnetic recording tapes because of its paramagnetic properties. a) Give the electron configuration of Cr and determine the number of unpaired electrons on each chromium atom. b) Suggest an ion from the same row of the periodic table that might be even more paramagnetic.
5 Points) Draw the MO whether each molecule is paramagnetic or diamagnetic and why. Define HOMO and LUMO. What are the HOMO and LUMO for each molecule? diagrams for Li2 and 2. Give the bond order for each. State 6-
3. (5 pts) The magnetic moment of a paramagnetic metal complex is measured as 3.8 UB at 25 °C and 2 UB at -150 °C. Which of the following is most likely true of this complex? (Select one answer. There is only one correct answer) a) It contains a Cu2+ ion surrounded by six pyridine ligands b) It contains an Fe2+ ion surrounded by six pyridine ligands c) It contains a Co2+ ion surrounded by two terpyridine ligands d) It...
Consider the coordination compound Caz[Co(CN)6]: i. ii. Give the systematic name of the compound. What is the magnetic property of the complex (diamagnetic, strong or weakly paramagnetic)? (Use the appropriate d-orbital splitting diagram from the formula sheet to explain your answer) iii. Will the complex be a high-spin or low-spin complex?
Consider the coordination compound K[Cr(CN).] : (i) Give the systematic name of the compound. (ii) What is the magnetic property of the complex (diamagnetic, strong or weakly paramagnetic)? (Use the appropriate d-orbital splitting diagram from the formula sheet to explain your answer). (iii) If the three cyanide ligands are replaced by aqua ligands, what will be the charge on the resulting complex ion? Show your working.
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