Chemistry: Principles and Practice (3rd Edition)

Published by Cengage Learning
ISBN 10: 0534420125
ISBN 13: 978-0-53442-012-3

Chapter 1 - Introduction to Chemistry - Questions and Exercises - Exercises - Page 37: 1.78

Answer

62.14 mi/hr 27.78 m/s

Work Step by Step

1 km = 0.6214 mi, 100 km = 62.14 mi The conversion factor must cancel out the current units when multiplied by the current value. Thus, the conversion factor is: 1 km = 1000 m, 1 hr = 3600 s 100x1000 / 3600 = 27.78
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