Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 2 - Exercises: 100

Answer

127.0541 amu

Work Step by Step

Compute the fractional abundance for each isotope. Use a weighted average to compute the apparent atomic mass of the sample. (0.925241)(126.9045 amu)+(0.0747594)(128.9050 amu) = 127.0541 amu
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