General Chemistry: Principles and Modern Applications (10th Edition)

Published by Pearson Prentice Hal
ISBN 10: 0132064529
ISBN 13: 978-0-13206-452-1

Chapter 1 - Matter: Its Properties and Measurement - Exercises - Exponential Arithmetic: 13

Answer

a) $8.950\times10^{3}$ b) $1.0700\times10^{4}$ c) $2.40\times10^{-2}$ d) $4.7\times10^{-3}$ e) $9.383\times10^{2}$ f) $2.75482\times10^{5}$

Work Step by Step

a) 8950 Replace the comma three places to the left, so the exponential notation is $8.950\times10^{3}$ b) 10,700 Replace the comma four places to the left, so the exponential notation is $1.0700\times10^{4}$ c) 0.0240 Replace the comma two places to the right, so the exponential notation is $2.40\times10^{-2}$ d) 0.0047 Replace the comma three places to the right, so the exponential notation is $4.7\times10^{-3}$ e) 938.3 Replace the comma two places to the left, so the exponential notation is $9.383\times10^{2}$ f) 275,482 Replace the comma five places to the left, so the exponential notation is $2.75482\times10^{5}$
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