Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company
ISBN 10: 0078021529
ISBN 13: 978-0-07802-152-7

Chapter 2 - Questions and Problems: 2.44

Answer

79.90 amu.

Work Step by Step

Average atomic mass = (0.5069)(78.9183361amu) + (0.4931)(80.916289amu)= 79.90 amu.
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