Answer
79.90 amu.
Work Step by Step
Average atomic mass =
(0.5069)(78.9183361amu) + (0.4931)(80.916289amu)= 79.90 amu.
Chemistry (4th Edition)
by Burdge, Julia
Published by
McGraw-Hill Publishing Company
ISBN 10:
0078021529
ISBN 13:
978-0-07802-152-7
Chapter 2 - Questions and Problems - Page 77: 2.44
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