PS1 - Why? c. In a mass spectrometer, the ratio of an...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chemistry 2090 Problem Set #1 Due Monday (in class), January 31, 2011 Skim Chap 1 Do problems: 78, 86 Read Chap 2 Do problems: 8, 18, 37, 47, 58, 78, 90 Start reading Chap 3 Do the following problem: Ex3. a. Describe the experiment by Rutherford, conducted in the early 1900’s, that dispelled the “plum pudding model” of the atom. b. In the making of the initial atomic bomb, two compounds were considered for the gas phase separation of 235 92 U from 238 92 U: UF 6 and UCl 6 . Given the following nuclide masses and % abundances: 35 17 Cl 34.968852 75.77% 19 9 F 18.9984 100% 37 17 Cl 36.965902 24.23% Which compound was chosen for the separation?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Why? c. In a mass spectrometer, the ratio of an unknown isotope of an element, Z, to 31 15 P (mass = 30.973761) was 1.2579585. What are the atomic mass and the elemental symbol of Z? d. The compound PCl 3 is a common starting material for the synthesis of various phosphorus-containing compounds, including many used in insecticides. Phosphorus is 100% 31 15 P (30.973761). Using a mass number of 31 for P, and mass numbers (%s) 35 (76%) and 37 (24%) for 35 17 Cl and 37 17 Cl, respectively, predict what the mass spectrum of PCl 3 would look like by giving the % abundances and masses of all molecular ions....
View Full Document

Ask a homework question - tutors are online