Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 1 - Chemical Foundations - Exercises: 32

Answer

a) 400000 b) 390000 c) 386000 d) 3.8550 * $10^{5}$

Work Step by Step

Count out the expected significant figures and figure out whether to round up or down a) Since 8 rounds up -> 400000 b) Since 5 rounds up -> 390000 c) Since 5 rounds up -> 386000 d) Since 0 rounds down -> 385500. However, since has 4 sig figs, we can convert this to scientific notation. 3.8550 * $10^{5}$
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