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atomicweight
Course: CHEM 145, Fall 2009School: Widener
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145 Chemistry Lecture Problems Atomic Weight Calculate the average atomic weight of Chlorine given the following informaton Isotope Exact Mass Abundance 35 34.9688530 999 37 36.9659 324 Given: mass 35 mass 37 34.9688530 36.9659 abundance 35 abundance 37 999 324 Total mass abundance: abundance total abundance 35 abundance 37 abundance total = 1323 Percent Abundance: percent 35 abundance 35 abundance total...
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145 Chemistry Lecture Problems Atomic Weight
Calculate the average atomic weight of Chlorine given the following informaton Isotope Exact Mass Abundance 35 34.9688530 999 37 36.9659 324 Given: mass 35 mass 37 34.9688530 36.9659 abundance 35 abundance 37 999 324
Total mass abundance: abundance total abundance 35 abundance 37
abundance total = 1323 Percent Abundance: percent 35 abundance 35 abundance total abundance 37 abundance total percent 35 = 75.5102 %
percent 37
percent 37 = 24.4898 %
Weighted atomic mass: mass 35 .percent 35 mass 37 .percent 37
mass Cl
mass Cl = 35.45793
6/4/01
S.E. Van Bramer
6/4/01
Calculate the average atomic weight of Bromine given the following informaton Isotope Exact Mass Abundance 79 78.9183320 999 81 80.9163 978 Given: mass 79 mass 81 78.9183320 80.9163 abundance 79 abundance 81 999 978
Total mass abundance: abundance total abundance 79 abundance 81
abundance total = 1977 Percent Abundance: percent 79 abundance abundance 79 total abundance 81 abundance total percent 79 = 50.53111 %
percent 81
percent 81 = 49.46889 %
Weighted atomic mass: mass 79 .percent 79 mass 81 .percent 81
mass Br
mass Br = 79.9067
6/4/01
S.E. Van Bramer
6/4/01
Calculate the average atomic weight of Mercury given the following informaton Isotope % Abundance 196 0.146 198 10.2 199 16.4 200 23.13 201 13.22 202 29.8 204 6.85
Given: mass 196 mass 198 mass 199 mass 200 mass 201 mass 202 mass 204 196 198 199 200 201 202 204 abundance 196 abundance 198 abundance 199 abundance 200 abundance 201 ...
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