Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 1 - Sections 1.1-1.8 - Exercises - Problems by Topic: 78d

Answer

There are seven significant figures in $1.563300 \times 10^{11}$.

Work Step by Step

All non-zero numbers are significant (1.5633 in this case), as well as any trailing or final zeroes after the decimal point (so the two zeroes after 1.5633 in this case). $10^{11}$ is just to express how many more zeroes you must add, so they are not significant.
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