Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises: 2.39a

Answer

24.3051 amu

Work Step by Step

To find the average atomic mass we need to find the weighted average of the three isotopes. We do so by taking the sum of mass of each isotope times its abundance as follows: 23.98504amu * 0.7899 + 24.98584amu*0.1000 + 25.98259amu * 0.1101 = 24.3051 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.