Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 4 - Atomic Structure - 4.3 Distinguishing Among Atoms - Sample Problem 4.5: 25

Answer

79.91 amu

Work Step by Step

Multiply the percent of the relative abundance of each isotope by its atomic mass, and add them get the atomic mass. Atomic mass of isotope 1 = 78.92 amu (50.69%) Atomic mass of isotope 2 = 80.92 amu (49.31%) 78.92 amu (0.5069) + 80.92 amu (0.4931) = 79.91 amu
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.