120A problem set 2 key

120A problem set 2 key - CHEMISTRY 120A Inorganic Chemistry...

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1 CHEMISTRY 120A - Inorganic Chemistry PROBLEM SET 2 ANSWERS Published Friday, May 14 th 2010 11:01 am Guidelines (Please Read Carefully): Please include this top page in your homework to facilitate the grading of your problem sets and the assignment of grades. Please write clearly (especially your name and student ID). Thank you! Question 1 ________/ 5 Question 2 ________/ 5 Question 3 ________/ 5 Question 4 ________/ 30 Question 5 ________/ 5 Question 6 ________/ 10 Question 7 ________/ 20 Question 8 ________/ 12 Question 9 ________/ 8 NAME: _________________________________ SECTION: ______________________________ PID: ___________________________________ TOTAL
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2 Question 1 (5 Points): Match the following group theory terms with their definitions: __h__ E a. representation which is symmetric to the principal rotation axis __i__ ‘’ b. mirror plane coincident with the principal rotation axis which contains atoms __d__ u c. symmetric to inversion __g_ σ d d. antisymmetric with respect to inversion __a__ A e. symmetric to a horizontal mirror plane __j__ T f. representation which is antisymmetric to the principal rotation axis __e__ ‘ g. mirror plane coincident with the principal rotation axis which bisects angles between atoms __c__ g h. representation containing two mathematical degeneracies __f__ B i. antisymmetric to a horizontal mirror plane __b__ σ v j. representation containing three mathematical degeneracies Question 2 (5 Points): Name the following compounds and indicate the oxidation state of the transition-metal atoms with Roman numerals: a. [Cu(NH 3 ) 4 ][PtBr 4 ] tetraamminecupric(II) tetrabromoplatinate(II) b. [Co(en) 2 Cl(NO 2 )]Cl chlorobisethylenediaminenitritocuprate(III) chloride c.
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