<> Question 30 of 39 Antimony has two naturally occuring isotopes, 12 Sb and 123sb. 12' Sb has an atomic mass of 120.9038 u, and 123 Sb has an atomic mass of 122.9042 u. Antimony has an average atomic mass of 121.7601 u. What is the percent natural abundance of each isotope? 121 Sb: 123 Sb: 15
<> Question 30 of 39 Antimony has two naturally occuring isotopes, 12 Sb and 123sb. 12' Sb has an atomic mass of 120.9038 u, and 123 Sb has an atomic mass of 122.9042 u. Antimony has an average atomic mass of 121.7601 u. What is the percent natural abundance of each isotope? 121 Sb: 123 Sb: 15
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 32E: Two elements, R and Q, combine to form two binary compounds. In the first compound, 14.0 g of R...
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Transcribed Image Text:< Question 30 of 39 >
121
atomic mass of 122.9042 u. Antimony has an average atomic mass of 121.7601 u. What is the percent natural abundance of
each isotope?
Antimony has two naturally occuring isotopes, 12Sb and 123Sb. Sb has an atomic mass of 120.9038 u, and 123 Sb has an
121 Sb:
123 Sb:
15
W
A stv
MacBook Air
Transcribed Image Text:Question 39 of 39
Chromium has an atomic mass of 51.9961 u and consists of four isotopes, 50CT, 5Cr, Cr, and $ªCr. The $Cr isotope has a
natural abundance of 83.79% and an atomic mass of 51.9405 u. The "Cr isotope has a natural abundance of 2.37% and an
atomic mass of 53.9389 u. The natural abundances of the Cr and Cr isotopes exist in a ratio of 0.4579:1, and the 50 Cr isotope
has an atomic mass of 49.9460 u. Determine the atomic mass of the Cr isotope.
atomic mass of "Cr:
53
15
étv
W
MacBook Air
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