Textbook Homework AssignmentsTextbook Homework AssignmentsThere will be several homework assignments throughout the quarter from both of our chemistry textbooks, Inorganic Chemistry, and Principles of Physical Chemistry. Assignments will be posted with as much advance notice as possible.HW # 1: due Thursday 9-29-05 (week 1) at 9:00 AMInorganic Text, Chapter 1Mid Chapter Problems (1, 3, 8, 15): Problems ( 16, 19, 21, 28, 31)HW # 2: due Thursday 10-6-05 (week 2) at 9:00 AMP.Chem Text, Chapter 1 (1, 2, 5, 6, 8, 10, 12)Inorganic Text, Chapter 5: Problems (2, 3)(w1) Which of the following schemes for the repeating pattern of close-packed planes are not ways of generating close-packed lattices? (a) ABCABC… (b) ABAC… (c) ABBA… (d) ABCBC… (e) ABABC… (f) ABCCB…(w2) In describing the body-centered cubic unit cell, it was noted that the atom in the center has a coordination number of 8. Draw an extended diagram of the body-centered space lattice and demonstrate that a corner atom also has a coordination number of 8.(w3) Given a face-centered cubic arrangement of atoms in which the corner atoms are type A and those at the face centers are type B, what is the empirical formula of the compound in terms of A and B?HW # 3: due Thursday 10-13-05 (week 3) at 9:00 AMP.Chem Text, Chapter 1 (14, 28, 29, 34, 39)Inorganic Text, Chapter 5: Problems (5, 10) Overview Problems (21)(w1) Metallic Iron can crystallize in more than one cubic lattice, depending on temperature and pressure. At a given temperature the unit cell edge length (a) is 287 pm. At this temperature, the density of iron is 7.87 g/cm3. How many iron atoms are within one unit cell and what cubic unit cell is achieved at this temperature?(w2) Europium crystallizes in a body-centered cubic lattice. If the density of Eu is 5.26 g/cm3, calculate the radius of a single Europium atom.HW # 4: due Thursday 10-20-05 (week 4) at 9:00 AMP.Chem Text, Chapter 2 (1, 12)(w1) Two moles of an ideal gas at 300K and 10 atm pressure are expanded isothermally against a constant external pressure of 5 atm until the internal pressure reaches a value of 7 atm. At this point the expansion is halted. Calculate the work (w) associated with this expansion. You may ignore acceleration effects.(See explanation in example 2.3.)(w2) Two moles of an ideal gas at 300K and 10 atm pressure are expanded isothermally against a constant external pressure of 5 atm until the internal pressure reaches a value of 7 atm. At this point, the external pressure is reduced to zero and the gas is further expanded into a vacuum until a final state with P = 1 atm and T = 300 K is reached. Calculate the work (w) associated with this expansion. You may ignore acceleration effects. (See explanation in example 2.3.)Inorganic Text, Chapter 27: Problems (2, 11)(w3) Describe the nature of Frenkle and Schottky defects, and some experimental tests for their occurrence. Do either of these defects, by themselves, give rise to nonstoichiometry?(w4) Distinguish intrinsic from extrinsic defects and give an example of each in actual compounds.(w5) Is a crystallographic shear plane a defect, a way of describing a new structure, or both? Explain your answer.(w6) How might a compound of stoichiometry Cu1.77S come about? The commonoxidation states for copper are +1 and +2. Explain your answer.HW # 5: due Thursday 10-27-05 (week 5) at 9:00 AMP.Chem Text, Chapter 2 (11, 13, 15, 16, 17, 33)Inorganic Text, Chapter 5: Problems (15, 19)(w1) What is the difference between the cooper pair theory of superconductivity and the bipolaron theory of superconductivity?(w2) According to the Disproportionation theory of superconductivity, what is the significance of mixed valent copper in copper superconductors?HW # 6: due Thursday 11-3-05 (week 6) at 9:00 AMP.Chem Text, Chapter 4 (9, 14, 18, 23, 28)Inorganic Text, Chapter 4: Problems (5)(w1) Distinguish between a metal and a semiconductor: (a) using a band diagram (b) conductivity behavior with temperature (c) Explain how band theory accounts for these observed changes in conductivity.(w2) Draw Lewis structures, provide the VSEPR molecular geometries, and identify the hybridization of the central element for each compound: (a) XeF4 (b) PF5 (c) H2O (d) BrF3.(w3) Describe a limitation of Valence Bond Theory.(w4) How many molecular orbitals are possible if atom A (containing only s and p atomic orbitals) bonds with atom X (containing s, p and d atomic orbitals)?(w5) The following is a MO energy diagram that can be used for F2-. Some of theAO’s and MO’s have been labeled incorrectly. Fix the errors and obtain the electronic configuration of F2-. Be sure to draw the electronic configuration in thediagram as well as write the nomenclature.HW # 7: due Thursday 11-10-05 (week 7) at 9:00 AM2u2g1g1u2g2u2s 2s3p 2pEnergy2u2g1g1u2g2u2s 2s3p 2p2u2g1g1u2g2u2s 2s3p 2pEnergyP.Chem Text, Chapter 4 (21) & Chapter 5 (2, 6, 14, 24, 26)(w1) Draw a bonding sigma bond between one s orbital and one pz orbital.(w2) Draw an antibonding pi bond between two py orbitals.(w3) Explain with words and a diagram a delta bond. Clearly label the orbitals involved.(w4) Why does Lewis Theory and VSEPR theory work so poorly for transition metal complexes? (This also leads to a failing of VB theory for these same materials.)Updated on 11-2-05 by Rebecca