Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 4 - Section 4.1 - Approximate Numbers and Accuracy - Exercise - Page 163: 27


There are 6 significant digits.

Work Step by Step

To find the number of significant digits in the measurement $32.0070~g$, we follow the rules on page 162 of the book. We use rule #1: all non-zero digits are significant. Thus "3,2,7" are significant. We also use rule #2: all zeros between significant digits are significant; thus, we have here 2 zeros which are significant. We also use rule #4: all zeros to the right of a significant digit and decimal point are significant; that is, we have here 1 zero which is significant. Thus, there are 6 significant digits.
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