CHEM 151A Midterm: CHEM 151A UCSC Exam2 2000
Document Summary
Calculators and model sets are the only aids allowed for this exam. Periodic and character tables are provided at the end of the exam (feel free to separate and keep in front of you). Partial marks will be rewarded where applicable, so be sure to show all your work and explain your answers. There are four questions, worth 24, 19, 20 and 17 marks, respectively, for a maximum possible score of 80. Spend an appropriate amount of time on each question. F = e. na = 9. 649 me = 9. 109. 10-31 kg c = 3. 00 e = 1. 602. 104 c. mol-1 mp = 1. 673 k = 1. 381 e = the natural number ~ 2. 718. R = 0. 08206 l. atm. k-1. mol-1 = 8. 314 j. k-1. mol-1 = 8. 314 v. c. k-1. mol-1. 2: give the point groups of the following (you don t need to list the symmetry elements, you can just give the point group). [3 marks each, 24 total] (a) diborane, bi2h6 (b) ru(c5h5)2, eclipsed rings.
