Chem460 Problem set 1- Answers

Chem460 Problem set 1- Answers - Other combinations give...

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Problem Set #1 Answers Part I (1)C 4 H 4 O a. M+1 = 4 x (1.11%) + 4 x (0.016%) + 0.04% = 4.544% b. M+2 13 C 2 = [(0.0111) 2 x (4 x 3)/2] x 100 = 0.074% D 2 = 1.5 x 10 -5 % --- negligible 18 O 1 = 0.2 % 13 C 1 D 1 = 0.003% 13 C 1 17 O 1 = 0.002% D 1 17 O 1 = 2.56 x 10 -5 % --- negligible Total = 0.279% c. M+3 13 C 3 = [(0.0111) 3 x (4 x 3 x 2)/(3 x 2 x 1)] x 100 = 0.001% 18 O 1 13 C 1 = [0.002 x (0.0111) x 4] x 100 = 0.00888%
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Unformatted text preview: Other combinations give negligible contributions. Total = 0.00988% d. M+4 < 0.001% (2) C 6 H 12 O 2 M+1 = 6.932% M+2 = 0.603% M+3 = 0.031% M+4 < 0.0001% (3) C 7 H 6 N 2 M+1 = 8.626% M+2 = 0.327% M+3 = 0.007% M+4 < 0.001% Part II (4) C 6 H 5 Br (5) C 3 H 7 NO 2 (6) C 10 H 7 NO 2 (7) C 6 H 14 O 2 Si (8) C 4 H 2 Cl 2 S...
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This note was uploaded on 01/18/2012 for the course CHEM 460AB taught by Professor Sasaki during the Fall '11 term at University of Washington.

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